Uppers Gun Parts
(597 deals total)
- Uppers
from $1,360.26
UPC:
810081133722
MPN:
08-544B
Caliber:
223/5.56
Barrel Length:
11.5"
Features:
-
from $125.00
UPC:
816701017625
MPN:
110BILLET
Caliber:
223/5.56
Model:
Billet
Description:
Stripped
from $953.12
UPC:
817093024215
MPN:
R0438
Caliber:
223/5.56
Features:
8.5in MLOK Handguard
from $1,277.08
UPC:
817953023198
MPN:
08-159
Caliber:
223/5.56
Barrel Length:
14.5"
from $179.99
UPC:
783583554015
Caliber:
223/5.56
Barrel Length:
16" M4 pencil barrel
Features:
M4 Handguard
from $229.99
UPC:
051655111444
MPN:
51655111444
Caliber:
223/5.56
Barrel Length:
11.5"
Features:
No Bolt Carrier Group or Charging Handle, Lightweight M-Lok 10.5" Free Float Rail
from $620.86
UPC:
051497388553
MPN:
AR57ULT-12
Caliber:
5.7x28mm
Barrel Length:
12"
from $1,249.99
UPC:
817953025215
MPN:
08-176
Caliber:
223/5.56
Barrel Length:
10.3"
Features:
-
from $1,414.49
UPC:
845737017354
MPN:
36320-06
Caliber:
223/5.56
Barrel Length:
20"
from $117.57
UPC:
840014611782
MPN:
APAR620201AC
Caliber:
9mm
1 hour ago
Color : Black
Cartridge : 300 AAC Blackout
Barrel Length : 9.00
Finish : Anodized
Item Height (Inches) : 2.250
Gas Block Diameter : 0.750 Inches
Material : Aluminum
Item Length (Inches) : 17.500
Item Width (Inches) : 1.500
Item Weight (lbs) : 4.500
Model Number : BRN-180
Make Model Fit : Brownells.BRN-180S
Muzzle Threads : 5/8"x24
Receiver Style : Complete
Quantity : 1
Twist : 1-6
Brownells sku: 430111221
MPN#: BRN-180-GEN3-300-9
UPC#: 050806002661
- UPC: 050806002661
- MPN: BRN-180-GEN3-300-9
2 hours ago
Grab a 300blk upper in time for hunting season or plinking. Features:
- 8.5″ 4150 CMV 300 Blackout Ar15 Barrel
- 5/8-24 Threads (flash hider can be left off or loose if desired, if you plan on a suppressor)
- Pistol Gas length
- .750 Low Pro steel gas block, SS gas tube
- 7075-t6 Aluminum Mil Spec Upper Receiver, anodized black
- Dust cover, Forward Assist
- 7″ MLok Free Float Handguard
Variety of Bolt carrier groups and charging handles available in the options.
Assembled, Test-Fired, and QC’d In-House
Mid State Firearms
30483
13 hours ago
Geissele Super Duty MOD1 5.56 NATO 11.5" 1:7" CHF Chrome Lined Bbl Black Complete Upper Receiver Group 08-544B is built to deliver dependable performance in a compact, duty-ready package. Featuring an 11.5-inch cold hammer forged barrel with a chrome-lined bore and chamber, this upper is designed for longevity, accuracy, and resistance to heat and fouling under sustained fire. The 1:7 twist rate optimizes stability for a wide range of bullet weights, making it a versatile option for both training and real-world scenarios.
- UPC: 810081133722
- MPN: 08-544B
- Model: Geissele Super Duty Upper
13 hours ago
SKU 51655158680
Brand Palmetto State Armory
DETAILS
Barrel Length: 16"
Gas System: Carbine
Barrel Profile: M4
Barrel Steel: 4150V Chrome Moly
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1 in 7"
Barrel Extension: M4
Diameter at Gas Block: .750"
Gas Block Type: Low Profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: B5 Systems MLOK Carbine Handguard, Flat Dark Earth
Bolt Carrier Group Includedo: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
16 hours ago
DETAILS:
Brand: Palmetto State Armory0
Model: PA-15 Upper
Platform: AR-15
Barrel Length: 10.5"
Barrel Profile: A2
Gas System: Carbine length
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2x28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-Profile
Muzzle Device: Lead Star Ravage Linear Compensator
Receiver Material: Forged 7075 T6 Aluminum
Receiver Type: M4
Handguard Type: Lead Star Ravage 11" MLOK Handguard
Bolt Carrier Group Included: No
18 hours ago
Overview:
The HK MR556 upper receiver kit offers a factory-quality upper assembly designed to fit AR-15/M16/M4 platforms. Built to HK’s rigorous standards, this 11" kit pairs a precision 5.56mm barrel with a full-length Picatinny receiver interface for reliable accuracy, robust accessory mounting, and service-grade durability in a compact package.
Key Features:
Brand: HK (Heckler & Koch)
Series / Model: MR556 — Upper Receiver Kit
Category: Uppers
Caliber: 5.56mm
Firearm Fit: AR15 / M16 / M4
Color / Finish: Black
Barrel Length: 11"
Applications:
- UPC: 642230270220
- MPN: 51000385
19 hours ago
$641.49
Based on popular carbine configurations, these XM177E2 Upper Receivers are ready for your next Retro build.
The muzzle of the XM177E2 Upper Receiver, is capped by the classic XM177E2 moderator inspired flash hider, with ports around its radius. This muzzle device is a flash hider, unlike the original XM177 muzzle device, which was technically a suppressor.
- UPC: 050806001091
- MPN: BRN-17711-12
22 hours ago
$379.99
The Troy Industries A3 Upper Receiver is designed to deliver dependable performance at an affordable price. Designed to balance quality and affordability, this complete upper features a 16-inch barrel chambered in 5.56 NATO and comes equipped with a TPR flash hider. Its 15.125” X-Series M-LOK handguard offers a slim, ultra-light profile with versatile mounting options: multiple M-LOKs (including M-LOK attachment points on top), four Picatinny slots at the muzzle, and two Picatinny slots at the receiver.
- MPN: SUPG-A3S-16BT-25
23 hours ago
All BCM® Upper Receiver Groups with a MCMR Handguard Include:
-One 3" Picatinny Rail Section
-One BCM MCMR Sling Mount
Manufactured by Bravo Company MFG, Inc. (BCM)
These Barreled Upper Receiver Groups are designed for shooting professionals and responsible civilians with the Mil-Spec features for the demands of their duty. They are fully assembled, headspaced, and test fired.
Bravo Company
18982
23 hours ago
$814.65
Upper and handguards are Cerakoted in FDE. As with any paint process color variations will occur from batch to batch.
All BCM® Upper Receiver Groups with a MCMR Handguard Include:
– One 3" Picatinny Rail Section
– One BCM MCMR Sling Mount
Manufactured by Bravo Company MFG, Inc. (BCM)
These Barreled Upper Receiver Groups are designed for shooting professionals and responsible civilians with the Mil-Spec features for the demands of their duty. They are fully assembled, headspaced, and test fired.
Bravo Company
1161
23 hours ago
$59.95
BCM® M4 Flat Top Upper Receiver with cosmetic blemishes. Most have scratches or scuffs.
The upper comes unassembled, but complete with BCM forward assist assembly and ejection port cover door assembly.
You must assemble it. (Assembly required) (all parts, but you will have to assemble together)
THESE ARE USED/DEMO UPPER RECEIVER ASSEMBLIES. All will have several nicks, scratches, and marks on exterior finish. NO HANDPICKING.
This receiver has the M4 feedramps machined in. This is to be used with barrels that include the M4 barrel extension.
Built to the correct Mil-Specs.
23 hours ago
,
by Dealer
Electroless Nickel Teflon has continually proven to outperform traditional Anodizing and Phosphate coatings by leaps and bounds! The increased reliability, corrosion resistance and ease of maintenance make this upgrade a no-brainer.
PLEASE NOTE: These uppers are being sold at a discounted rate due to minor imperfection in the base metal. These imperfections are very common but are usually hidden when anodized. Nickel Teflon does not hide them as well. In no way shape or form will these blemishes affect functionality.
Features:
Machined From mil-spec 7075 T6 forging
M4 feed ramps
- MPN: NTUS-BLEM
1 day ago
The Andro Corp 5.56 NATO AR-15 Barreled Upper Receiver is built from high quality parts like a 4150CMV barrel, 7075-T6 aluminum receiver and heavy duty Melonite finishes. The upper receiver also features a dry lube finish on the interior reducing the friction with the bolt carrier for a smoother and more reliable action. The flat top picatinny rail is T-marked for easy identification of your optics position if you plan on using a quick detach mount. This 16" barreled upper receiver chambered in 5.56 NATO is perfect for building an AR-15 rifle.
- MPN: U55616MLOKNBCGCH
1 day ago
,
by Dealer
Details
This Aegis 8.5-inch AR-15 complete upper in .300 BLK is engineered for performance and reliability. Constructed from 7075-T6 aluminum, the upper receiver features a hard anodized finish for durability. The 8.5-inch heavy barrel is made from 4150 Chrome Moly Vanadium steel and has a Parkerized finish, ensuring longevity and resistance to corrosion. With a barrel twist rate of 1:8T and a thread pitch of 5/8x24, this upper is suppressor ready, making it an ideal choice for discreet shooting.
Davidson Defense
3897
1 day ago
,
by Dealer
AR-15 Stripped Upper
This AR-15 Stripped Upper is a high quality Stripped Upper Receiver precision machined from 7075-T6 Aluminum Forgings. Made in the U.S.A. A stripped upper is the basis for the entire upper half of your AR-15 so it is important to choose a quality product that meets or exceeds mil-specs.
Features
7075-T6 Forged Aluminum
Black Anodized finish
Flat-Top with Picatinny rails
Mil-Spec dimensions for guaranteed fit with any mil-spec lower receiver
Forge marks may vary but all will adhere to strict tier-1 quality control.
Weight 7.04 oz
Finish
Anodized Black
- MPN: 2377
1 day ago
The Daniel Defense MK18 Upper Receiver Group is a testament to superior design and engineering, featuring a 10.3" Cold Hammer Forged Barrel and the renowned RIS II Rail System. This complete upper receiver is crafted for precision and reliability, making it an ideal choice for enthusiasts seeking top-tier performance.
Perfect for range time and training, the MK18 Upper Receiver Group offers versatility and ease of use. Daniel Defense's commitment to innovation and quality is evident in every detail, ensuring a product that stands out in the market.
Key Features:
- UPC: 815604014045
- MPN: 23-004-08013-006
1 day ago
Overrun stock at a value price — a complete Expo Arms barreled upper ready to drop onto your mil-spec lower. The Expo Arms 5.56 NATO Barreled Upper Receiver Group delivers a 10.5-inch 1:8 twist barrel on a carbine direct-impingement gas system with a free-float M-LOK handguard and flash hider, without a BCG or charging handle, giving you the flexibility to run your preferred components.
Primary Arms
37
1 day ago
$241.56
With a 8-inch barrel made of Chrome Moly Vanadium and a twist rate of 1-16, the 45 ACP AR Upper from Andro Corp Industries offers dependable performance. It comes fitted with a sleek M-LOK hand guard, allowing for easy customization with your favorite accessories. Constructed from Mil-Spec 7075 T6 aluminum and featuring T-marks, the upper is also dry film lubricated to ward off corrosion. Its use of Mil-Spec components makes it a trustworthy choice.
BARREL SPECIFICATIONS:
Caliber .45ACP
Length 8"
Material 4150 Chrome Moly Vanadium
Profile Medium
- UPC: 736684139773
- MPN: U458MLNBCH
2 days ago
$339.99
SKU 51655156207
Brand Palmetto State Armory
DETAILS
Barrel Length: 10.5"
Barrel Profile: A2 Style
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: 9mm (9x19)
Twist Rate: 1 in 10"
Barrel Extension: 9mm
Muzzle Device: PSA Fluted Flash Can
Receiver Material: Billet 7075 T6
Receiver Type: Slick Side
Handguard Type: PSA 12" Lightweight Hex Full Picatinny M-Lok Free Float Rail
Bolt Included: Yes, (Gen 4, Hybrid)
Bolt Steel: 8620, Phosphate Coated
Charging Handle included: Yes
FEATURES
2 days ago
SKU 5165448774
Brand Palmetto State Armory
Model Number 5165448774
UPC 5165448774
DETAILS
PSA 18" Rifle-Length 6.5 Grendel 1/8 Stainless Steel 15" Lightweight M-Lok Upper - With BCG & CH - 5165448774
Barrel Length: 18"
Gas System: Rifle-length
Barrel Profile: A2 Style
Barrel Steel: 416R
Barrel Finish: Stainless Steel
Chrome Lining: None
Muzzle Thread: 5/8-24
Chamber: 6.5 Grendel; Type 2
Twist Rate: 1:8
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low profile adjustable gas block
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
- UPC: 005165448774
- MPN: 5165448774
2 days ago
CUS16M4
Details:
AR15 CUSTOM UPPER 16" 556 PENCIL BFI M4 HANDGUARD
Specifications & Features:
• Barrel: Bushmaster 5.56NATO 16" M4 pencil barrel with A2 Flash hider.
• Chamber: 5.56NATO
• Twist Rate: 1:8"
• Gas System: Carbine-Length Direct Impingement with Flat Top Gas Block and Bayonet Lug
• Handguard: M4 Handguard
• Muzzle Device: A2 Flash Hider
• Overall Length: 23.5"
BOLT CARRIER GROUP OR CHARGING HANDLE IS NOT INCLUDED
This item cannot be shipped to California, Connecticut, Maryland, New Jersey, New York, or Washington D.C.
783583554015
- UPC: 783583554015
- MPN: CUS16M4
- Model: Bushmaster Upper Receiver
2 days ago
$399.99
Luth-AR 16" Lightweight Barrel Complete Upper Receiver, 223 Rem/556NATO, Black Finish, 15" Palm Handguard Keymod, 1:9 Twist, Complete Barrel Assembly w/BCG, Fits AR-15 BAA3-L16
– Manufacturer Luth-AR
– Model 16" Lightweight Complete Upper
– UPC 812058030171
– SKU BAA3-L16
– Width 4.2500
– Length 34.2500
– Height 4.2500
– Weight 5.1300
– Caliber 5.56x45mm NATO
- UPC: 812058030171
- MPN: BAA3-L16
3 days ago
This custom engraved M4 flat top upper receiver is machined to Military Specifications and comes precision engraved with a beautiful high contrasting image: "SKELETON THIS END TOWARDS ENEMY". We use a leading industry 3-axis galvo fiber direct diode laser to produce a permanent etching into the AR15 anodizing that has incredible detail. Spruce up your AR-15 upper with one of our many engraving images and save big!
Machined from a Mil-Spec 7075 T6 forging
Type III Hardcoat Anodized finish
M4 Feedramps
.250 takedown pin holes
Product Code: UENG-M4-002
- MPN: UENG-M4-002
3 days ago
This Barreled 16 inch M-LOK upper receiver comes with a 15 inch free-float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 M4 barrel.
BARREL SPECIFICATIONS
– Caliber 5.56
– Length 16"
– Material 4150 Chrome Moly Vanadium
– Profile M4
– Finish QPQ Corrosion Resistant
– Gas System Length Carbine
– Gas Block Journal .750"
– Dimpled? No
– Twist Rate 1:7
– Muzzle Thread 1/2x28 TPI
– Weight 27.2oz
– Barrel Extension M4 Feed Ramps
– Target Crown 11 Degree
UPPER RECEIVER
– Machined from a Mil-Spec 7075 T6 Forging
- MPN: RTBBU-16BLK
3 days ago
Radical Firearms Complete Upper Assembly, 300 Blackout, 10.5" Barrel, 1:8 Twist, Black Finish, 10" RPR MLOK Handguard, A2 Flash Hider CFU10.5-300HBAR-10RPR
- UPC: 816903024094
- MPN: CFU10.5-300HBAR-10RPR
3 days ago
$229.99
SKU: 51655200888
Brand Palmetto State Armory
DETAILS
Barrel Length: 11.5"
Barrel Profile: A2
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: A3
Handguard Type: Lightweight Hex M-Lok 10.5" Free Float Rail
Bolt Carrier Group Included: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
Charging Handle Included: No
Overall Length: 20.5"
3 days ago
SKU 51655114156
Brand Palmetto State Armory
Model Number 51655114156
UPC 51655114156
DETAILS
Make: Palmetto State Armory
Caliber: 7.62x39mm
Details:
Gas Nitride 4150 steel treated barrel
Stamped steel receiver
Hammer Forged 4340 Aircraft Quality Front Trunnion
Hammer Forged Bolt
Hammer Forged Carrier
Enhanced Combo Block
Enhanced AK Tank Brake
Side Scope Mount
7.62x39 Caliber
1 in 9.5" Twist
Std. 800-yard rear sight leaf
FEATURES
Looking to build your own PSAK-47? Get started with this furniture ready barrel assembly.
- MPN: 51655114156
3 days ago
$151.96
NO BCG OR CHARGING HANDLE INCLUDED
This Barreled 16 inch M-LOK upper receiver comes with the Always Armed 12 inch free float Octo Series handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel.
Specifications:
Caliber 5.56
Length 16"
Material 4150 Chrome Moly Vanadium
Profile M4
Finish QPQ Corrosion Resistant
Gas System Length Carbine
Gas Block Journal .750"
Dimpled? No
Twist Rate 1:7
Muzzle Thread 1/2x28 TPI
Weight 27.2oz
Barrel Extension M4 Feed Ramps
Target Crown 11 Degree
Upper Receiver:
- MPN: BGBU-1655612OCT-BLK
3 days ago
Get a top-notch, ready-to-assemble upper for your gun that's chock full of high-quality components when you buy the American Defense Manufacturing 5.56 14.5 Inch Barrel M-Lok Rail Upper Reciever. Built with a Criterion 14.5-inch barrel, these AR15 Upper Receivers by American Defense Manufacturing also include a Raptor charging handle and a Mil-Spec Bolt Carrier Group. The American Defense Manufacturing 5.56 14.5in Criterion Barrel M-Lok Rail Upper Receiver is the top choice for Mil-Spec builds, shooting 5.56 NATO, and carbines with Carbine Bolt Carrier Groups (BCG).
- UPC: 818503015885
- MPN: UICCUBLK14M2MLOK
4 days ago
The Sons of Liberty Gun Works AR-15 Upper receivers are built from mil-spec 7075-T6 forgings from the lead forge in the U.S. They contour is fully machined leaving no flash marks from the forging. We take extra care when machining our upper receivers resulting in tolerances that are tighter and fits that are better than other upper receivers. We use mil-spec Matte black hard-coat anodized Mil 8625 Type 3 Class 2 finish. Try one today and feel the difference.
– Manufacturer Sons Of Liberty Gun Work
– Pricing Unit EA
– Model M4
– UPC 691821744312
– SKU UPPERSTRIPPED
– Width 2.6000
4 days ago
FEATURES
• Machined from billet 7075-T6 aluminum
• Hardcoat anodized
• Engraved T-marks and 1913 picatinny rail
• Increased wall thickness
• Precision cut carrier bore diameter
• .458 SOCOM sized ejection port
• No forward assist, shell deflector, or dust cover
• Compatible with Bear Creek Arsenal and Young Mfg. side charging BCGs
• Dual charging capabilities with standard charging handle
• M4 feed ramps
• Compatible with Mil-Spec lowers and parts
SPECIFICATIONS
Weight 7.7 oz
Finish Anodized Black
Forward Assist Not Compatible
Port Door / Dust Cover Compatible
- UPC: 000000018104
- MPN: UPUR-3A
5 days ago
SKU : 110BILLET
The stylization of the YHM-110-BILLET was directly related to the stylization of the Billet lower which YHM finished first. It is crafted from 7075-T6 aluminum and has a hardcoat anodized matte black finish. It features M4-style feed ramps and the inside is coated with dry film lube. It accepts standard upper receiver parts and mil-spec lower receivers.
Manufacturer Yankee Hill
Pricing Unit EA
Model Billet
UPC 816701017625
SKU 110BILLET
Width 5.1000
Length 13.1000
Height 3.0000
Weight 0.8000
Ar-15 Accessory Y
Caliber/Gauge 5.56x45mm NATO
Description Stripped
- UPC: 816701017625
- MPN: 110BILLET
5 days ago
This Noveske N4 Complete AR-15 Upper Assembly comes fully assembled and ready to drop onto any standard AR-15 lower receiver. The N4 upper is a precision machined billet receiver from 7075-T6 with extended feed ramps. The upper is finished with Hardcoat type III anodizing, with Cerakote ceramic black coating for the ultimate finish and performance. Additional features include a pinned Switchblock gas block, a Pig Pen suppressor compatible flash hider, and a shot-peened, MP-tested bolt housed within a Mil-Spec bolt carrier.
- UPC: 840906135273
- MPN: 03002568
6 days ago
This Andro Corp Industries 300 Blackout AR-15 Complete Upper has an 8-inch-long Chrome Moly Vanadium barrel with a 1-7 twist rate. It includes a slim, M-LOK hand guard, to easily include your favorite add-ons to the rifle. This upper with T-marks has been made of 7075 T6 Mil-Spec aluminum, then dry film lubed to ensure corrosion resistance. Andro Corp Industries 300 Blackout Complete AR15 Upper is a dependable choice made with Mil-Spec parts and a full auto rated MPI/HPT M16 Bolt Carrier Group with nitride finish for increased reliability.
Features:
- 300 Blackout
- MPN: U3008ML
6 days ago
Elevate your AR build with the Noveske Upper Complete 4th Generation Noveske9 9mm 10.5 Shorty SS BLK 1/2×28, a precision-engineered powerhouse designed for compact power and unmatched reliability. Perfect for enthusiasts seeking a high-performance pistol caliber carbine (PCC) upper, this 10.5-inch 9mm AR upper delivers smooth direct blowback operation in a lightweight, maneuverable package. Whether you’re customizing a personal defense pistol or building a dedicated 9mm platform, the Noveske9 sets the standard for quality and accuracy in the tactical firearms world.
Key Features:
- UPC: 840906121436
- MPN: 3000444
1 week ago
Details:
Barrel Length: 18"
Gas System: Rifle-length
Barrel Profile: A2 Style
Barrel Steel: 416R
Barrel Finish: Stainless Steel
Chrome Lining: None
Muzzle Thread: 5/8-24
Chamber: 6.5 Grendel; Type 2
Twist Rate: 1:8
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low profile adjustable gas block
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 15" Lightweight M-Lok Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: 9310, Nitride Coated
Bolt Carrier Profile: Full-auto
- MPN: 51655111510
1 week ago
$199.99
Features:
Barrel: Nitride finished 4150V chrome moly vanadium 16" barrel, Chambered in 5.56 NATO, with a 1:7 twist rate, M4 barrel extension, and a carbine length gas system. The barrel is finished off with B5 Systems MLOK carbine length handguard, a .750 F-Marked front sight base, and an A2 flash hider.
B5 Systems MLOK Carbine Handguard:
Slim profile for improved ergonomics
Durable composite construction
Integral heat shield 6 side M-LOK® attachment
Built-in hand stop
Compatible with both round and triangle handguards
Made In The USA
1 week ago
Description
The Centurion Arms CM4 Forged AR-15 Upper Receiver is designed to be compatible with any Mil-Spec Lower. It is forged from 7075-T6 aluminum and is Type III Class 2 hardcoat anodized black to military standards. It features a flat top picatinny rail and is compatible with standard upper parts. M4 feed ramps correspond with the feed ramps on your barrel extension to aid in reliability. The CM4 stripped AR-15 Upper Receiver is what you need for your next build.
Features:
- Forged from 7075-T6 aluminum
- Hardcoat anodized black
- Compatible with Mil-Spec parts
- MPN: CM4-F-UPPER
1 week ago
The One Horse 18″ 6mm ARC Rifle Complete Upper is built for shooters who want to extend the reach of the AR-15 platform without giving up reliability. Its 18-inch 416R stainless barrel and 1:7.5 twist are designed to deliver strong stabilization and accuracy across a range of 6mm ARC loads, making it a solid choice for precision shooting, hunting, and general-purpose long-range setups.
- UPC: 850078799852
- MPN: OH-CU09
1 week ago
More than 400 AR-15 Stripped or Complete Upper Receivers In Stock Now!
Wikiarms.com
68010
1 week ago
SKU 51655229007
Brand Palmetto State Armory
FEATURES:
Barrel: 11.5" 4150V Chrome-moly vanadium steel barrel, nitride treated for accuracy and durability, and chambered in 5.56 NATO with a 1 in 7" twist. This carbine-length gas barrel is finished off with a PSA 10.5" Lightweight M-Lok Rail in FDE, a low profile gas block, and an A2 style flash hider.
Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring a mil-spec finish, these uppers are made for us right here in the USA by a mil-spec manufacturer.
1 week ago
SKU 51655207703
Brand Palmetto State Armory
DETAILS
Direct Blowback Operating System
8620 Front Trunnion
17-4 Stainless Steel Bolt Carrier Group
Monolithic 6105 Receiver; Flat Dark Earth
6.5” 9MM Nitride 4150V Chrome Moly Steel Barrel
Twist Rate: 1 in 10”
Thread Pitch: 1/2 x 28
A2 Style Flash Hider
*Must be used with JAKL buffer system found on PSA JAKL 9MM lower or lowers built with a PSA JAKL 9MM lower build kit. Failure to use the PSA JAKL proprietary buffer system may result in damage to the JAKL upper and lower.*
FEATURES
PSA JAKL 9mm Uppers are now available!
1 week ago
SKU 51655229124
Brand Palmetto State Armory
DETAILS
Barrel Length: 11.5"
Barrel Profile: A2
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: A3
Handguard Type: Lightweight M-Lok 10.5" Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
Charging Handle Included: Yes
FEATURES
1 week ago
SKU 51655227860
Brand Palmetto State Armory
DETAILS
Barrel Length: 10.5"
Barrel Profile: A2
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 5/8-24
Chamber: 300 AAC Blackout
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 9" Lightweight M-Lok Free Float Rail
Bolt Carrier Group Included: No
Charging Handle Included: No
Optic: Vortex SPARC AR 2 MOA Red Dot Sight
FEATURES
1 week ago
This Dirty Bird Industries Complete Upper features a Black Nitride 10.5” Government Profile barrel chambered in 5.56 with a 1:7 twist. Built on a top-tier Forged Upper Receiver and finished with Dirty Bird’s 9.7″ SMRS M-LOK V2 or V3 Handguard available in several color options. No corners are cut when manufacturing these complete uppers. All barrels are dimpled and cold blued, use a .750 black nitride 4140 steel gas block and a carbine stainless steel gas tube.
- UPC: 810084371244
- MPN: D104-1
1 week ago
SKU 51655230034
Brand Palmetto State Armory
DETAILS
Barrel Length: 10.5"
Barrel Profile: A2
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low Profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 9" Lightweight M-Lok Rail
Bolt Carrier Group Included: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
Charging Handle Included: No
Overall Length: 19"
1 week ago
DETAILS:
Barrel Length: 16"
Gas System: Mid-length
Barrel Profile: A2
Barrel Steel: Chrome-Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 13.5" Lightweight Hex Full Picatinny M-Lok Free Float Rail. Flat Dark Earth
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full Auto
1 week ago
$169.95
Finally get a quality, true-to-form reproduction M16A1 Upper Receiver for a fraction of the cost. Building off of the popular stripped version of this Upper Receiver, we are happy to announce the M16A1 Assembled Upper Receiver. These are machined from 7075-T6 forgings specifically designed to have the correct proportions and profile of the original M16A1 Upper Receiver. They are then installed with a Mil-Spec Dust Cover, a Teardrop Forward Assist, and a Rear Sight. Machine work is performed by true craftsmen with careful attention to detail.
- UPC: 810084374160
- MPN: D207
1 week ago
– Manufacturer: Radian Weapons
– Model: Model 1 Builder Kit Billet Upper-Lower Set
– Caliber: 223/5.56
– Features: 8.5in MLOK Handguard
– Type: Upper / Lower
– Finish: FDE
- UPC: 817093024215
- MPN: R0438
1 week ago
With enhanced durability and improved function, the new and improved DPMS .308 upper is here. This model offers a black nitride gas tube to better resist high heat and corrosion while maintaining a glossy black finish. All DP10 models come with a dimpled barrel for ease of gas block replacement if you choose to do so. We have also included a newly designed click switch position adjustable gas block so you can specifically tune to your load.image
- UPC: 850044275601
- MPN: DP51655135005
1 week ago
SKU 51655155236
Brand Palmetto State Armory
DETAILS
Barrel Length: 16"
Gas System: Mid-length
Barrel Profile: A2
Barrel Steel: 4150V Chrome Moly
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1 in 7"
Barrel Extension: M4
Diameter at Gas Block: .750"
Gas Block Type: Low-profile
Muzzle Device: A2 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 13.5" Hex Full Picatinny M-Lok Rail
Bolt Carrier Group Included: No
Charging Handle included: No
Overall Length: 24.5"
FEATURES
1 week ago
Stripped AR-15 Upper Receiver - Choose Color
These uppers are lightly blemished
This M4 AR15 stripped upper receiver comes cerakoted
Cerakote Finish
AR-15
7075-T6 Aluminum
A3 Flat Top
Forged
M4 Feedramps
Add a plain or engraved port door + forward assist kit from the drop down menu.
Choose one of our upper engraving graphics from the drop down menu.
See reference "CHART A" and "CHART B" tabs above.
Right To Bear
1857
1 week ago
SKU 5165448513
Brand Palmetto State Armory
Model Number 5165448513
UPC 5165448513
DETAILS
PSA 16" MID-LENGTH 5.56 NATO 1:7 NITRIDE 13.5" LIGHTWEIGHT M-LOK UPPER - WITHOUT BCG OR CH
- Barrel Length: 16"
- Gas System: Mid
- Barrel Profile: A2
- Barrel Steel: 4150 Chrome-Moly Vanadium
- Barrel Finish: Nitride
- Chrome Lining: None
- Muzzle Thread: 1/2-28
- Chamber: 5.56 NATO
- Twist Rate: 1:7
- Barrel Extension: M4
- Diameter at Gas Block: .750
- Gas Block Type: Low-profile
- Muzzle Device: A2 Flash Hider
- Receiver Material: Forged 7075 T6
- Receiver Type: M4
- UPC: 005165448513
- MPN: 5165448513
1 week ago
The Next Step For The AR15
The G4 Stripped Upper brings Gibbz precision on your existing platform, with your existing
barrel. Featuring a left side, non-reciprocating side charging handle; beveled ejection port, rear
bolt carrier door, and charging handle cover, this upper brings the Gibbz pursuit of perfection to
your favorite existing rifle.
Specifications for G4 Stripped Upper
- Enlarged Ejection Port will work with AR15 calibers from 22LR to 50 Beowulf
- GIBBZ Arms Patented Pending Left Side Charging Handle
Gibbz Arms
115
1 week ago
$269.99
SKU 51655116322
Brand Palmetto State Armory
Model Number 51655116322
UPC 51655116322
DETAILS
Barrel Length: 10.5"
Barrel Profile: A2
Barrel Finish: Stainless Steel
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: A3
Handguard Type: Lightweight M-Lok 10.5" Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
Bolt Carrier Profile: Full-auto
- UPC: 051655116322
- MPN: 51655116322
1 week ago
This AR308 custom upper is built for reliability and performance in a classic configuration. Chambered in 308WIN, it features a 18-inch heavy barrel made from 4150 CMV steel with a matte black finish and a 1:10 twist rate, making it an excellent choice for stabilizing a wide range of bullet weights.
Key features include:
• AR 308 Charging Handle By Bushmaster
• Anderson Manufacturing 18" Heavy Barrel chambered in .308WIN with 1:10" Twist
• Mid-length gas system with steel gas block
• 13.5" MLOK Handguard with 3 rows of M-LOK accessory slots and full-length top rail
CDNN Sports
744
1 week ago
SKU 51655111444
Brand Palmetto State Armory
Model Number 51655111444
UPC 51655111444
DETAILS
Barrel Length: 11.5"
Barrel Profile: A2
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2-28
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: A3
Handguard Type: Lightweight M-Lok 10.5" Free Float Rail
Bolt Carrier Group Included: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
- UPC: 051655111444
- MPN: 51655111444
1 week ago
The Fostech Stealth Raptor Builders Kit offers a premium 7" Mach 2 handguard in a striking tungsten finish. Crafted from billet magnesium, this kit is designed for lightweight durability and superior performance. Ideal for custom builds, it combines advanced materials with precision engineering.
Brand: Fostech
Model: Stealth Raptor Builders Kit
Handguard Length: 7"
Finish: Tungsten
Material: Billet Magnesium
Manufacturer Part Number: FOS 10063TU
UPC: 725792577935
- UPC: 725792577935
- MPN: FST10063TU
1 week ago
Own a piece of firearm history from the makers of the world's most battle-proven firearms. The FN 15 Military Collector Series M16 upper receiver assembly is an authentic reproduction of the original, made to FN's and the U.S. military's exacting specifications. A 20-inch, 1:7 RH, button-broached barrel is chrome-lined and chambered in 5.56x45mm NATO. The upper is furnished with a complete M16-style MIL-SPEC bolt carrier group, including a HPT/MPI-tested bolt made from Carpenter 158 steel.
- UPC: 845737017354
- MPN: 36320-06
1 week ago
SKU 51655156215
Brand Palmetto State Armory
DETAILS
Barrel Length: 10.5"
Barrel Profile: A2
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 5/8-24
Chamber: 300 AAC Blackout
Twist Rate: 1:8
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-profile
Muzzle Device: A2 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 9" Lightweight Hex Full Picatinny M-Lok Free Float Rail
Bolt Carrier Group Included: No
Charging Handle Included: No
FEATURES
- MPN: 51655156215
