Uppers Gun Parts
(613 deals total)
- Uppers
from $1,360.26
UPC:
810081133722
MPN:
08-544B
Caliber:
223/5.56
Barrel Length:
11.5"
Finish:
Anodized
from $1,999.00
UPC:
642230270220
MPN:
51000385
Caliber:
223/5.56
Barrel Length:
11"
from $279.99
UPC:
729205554735
MPN:
BU-45ACP-4
Caliber:
45 ACP
Barrel Length:
4 in
Finish:
Black
from $254.95
UPC:
850078799326
MPN:
OHCU05
Caliber:
300 BLK
Barrel Length:
10.5"
Finish:
Matte Black
from $699.54
UPC:
818773024051
MPN:
MIDWAY V7 URG
Caliber:
223/5.56
Barrel Length:
16"
from $1,196.82
UPC:
817953023198
MPN:
08-159
Caliber:
223/5.56
Barrel Length:
14.5"
Finish:
Anodized
from $125.00
UPC:
816701017625
MPN:
110BILLET
Caliber:
223/5.56
Model:
Billet
Description:
Stripped
from $427.00
UPC:
850078799852
MPN:
OH-CU09
Caliber:
6mm ARC
Barrel Length:
18"
Finish:
Black / Stainless
from $399.95
UPC:
810084370926
MPN:
D026-1
Caliber:
223/5.56
Barrel Length:
7.5"
Finish:
Black Nitride Finish
from $1,299.99
UPC:
817953025215
MPN:
08-176
Caliber:
223/5.56
Barrel Length:
10.3"
Finish:
Anodized
4 minutes 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
1 hour ago
AR15 CUSTOM UPPER 16" 556 PENCIL BFI QUADRAIL
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: Carbine Length Aluminum Quad Rail
• 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.
- MPN: CUS16PQ
3 hours ago
$199.99
The Foxtrot Mike Products MIKE-9 VFM-9 Front Charging Handle 9mm AR-15 Complete Upper Receiver combines exceptional performance, innovation, and affordability. Designed with over 8 years of expertise in the PCC market, the VFM-9 offers superior quality and reliability without breaking the bank.
Features:
Chambered in 9mm
5.2" Barrel with 1/2x28 threads
Blast diverter muzzle device
Non-reciprocating forward charging handle
Free Float M-LOK handguard
Black anodized finish
- MPN: MIKE9U-FC-5LC
3 hours ago
These are blemished products and color will vary for each product. Product images may not fully represent what you will receive. They are guaranteed to still function.
The Geissele Automatics Super Duty 15-inch MK16 Kit is the full-length configuration of the USASOC URG-I upper platform, pairing the mil-spec Super Duty upper receiver with the 15-inch MK16 free-float handguard to give rifle-length AR-15 builds maximum accessory real estate and the most forward support-hand position in the MK16 lineup. This is a cosmetic blem unit; function is unaffected.
- MPN: 05-2104S-BLEM
3 hours 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
5039
4 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
22567
4 hours ago
Matador Arms MAT-9 Blowback AR Upper Receiver Nitride EZTS
Brand
Matador Arms
Model
MAT-9 Blowback AR Upper Receiver Nitride EZTS
Caliber
9mm
Features
Easy Take-Down, Top/ Bottom Picatinny Rail, 4140 Nitride, Mag-X Kit Fits: Glock, SIG, HK, CZ, Colt, LRBHO Compatible
Type
Upper
Action
Semi-Automatic
Finish
Black
Receiver
6061-T6 Anodized
Muzzle
1/2x28 Threads
Barrel Length
5.5"
Overall Length
12.125"
Weight
3.5 lbs
- UPC: 603784000176
- MPN: M9-00-G1
5 hours ago
SKU 51652241366
Brand Palmetto State Armory
DETAILS
Barrel Length: 7.5"
Gas System: Pistol Length
Barrel Steel: 4150V
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 5/8-24
Chamber: 5.56 NATO
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: Low-Profile
Muzzle Device: PSA Fluted Flash Can
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: 51652241366
5 hours ago
SKU: TG1382232
Del-Ton UR1022 AR-15 Flat Top Upper with M4 Feed Ramps, T-Marks
AR15 Top Upper Complete
- UPC: 848456001314
5 hours ago
These are blemished products and color will vary for each product. Product images may not fully represent what you will receive. They are guaranteed to still function.
The Geissele Automatics Super Duty 10.5-inch MK16 Kit gives builders the core upper assembly components for a compact SBR or pistol build, centered around the mil-spec Super Duty upper receiver and the battle-proven MK16 free-float handguard - the same rail platform adopted by USASOC for the URG-I program. This is a cosmetic blem unit; function is unaffected.
- MPN: 05-2812B-BLEM
5 hours ago
The Geissele Automatics Super Duty Upper Receiver is designed for AR-15 builders seeking superior performance and compatibility. Designed to perfectly match the Geissele Automatics Super Duty Lower Receiver, this upper receiver is constructed from 7075-T6 aluminum and features milled T-Marks, a durable hardcoat anodized black finish, and an installed forward assist and dust cover. This AR-15 upper receiver is built in the United States.
Features:
- AR-15 assembled upper receiver
- Dust cover installed
- Forward assist installed
- 7075-T6 aluminum construction
- MPN: 05-3201B
5 hours ago
Zaffiri Precision UPK, Upper Parts Kit, For Glock 19 Gen 5, Includes Firing Pin and Spring, Firing Pin Spacer Sleeve, Firing Pin Channel Liner, Spring Cups, Safety Plunger and Spring, Extractor, Extractor Depressor Plunger Assembly, Slide Recoil Cover Plate, Stainless Steel Guide Rod UPK.19.5
Manufacturer Zaffiri Precision
Pricing Unit EA
Model UPK
UPC 658792280058
SKU UPK.19.5
Width 5.1000
Length 15.1000
Height 0.9000
Weight 0.1050
Type Kit
- UPC: 658792280058
- MPN: UPK.19.5
6 hours ago
SKU: 430111219
NEW BRN-180® GEN3 FEATURES:
NONRECIPROCATING LEFT-SIDE CHARGING HANDLE: Gets the charging handle out of the way of the ejection port area and eliminates the flying hunk of metal every time you fire a shot. Left side position enables a better "division of labor" between firing and support hands.
Improved Charging Handle Ergonomics: The handle now angles downwards, so it's easy to grasp without having to wrangle your hand around your optic. This also makes manually locking back the bolt much easier.
- UPC: 050806002685
- MPN: BRN-180-GEN3-223-16
6 hours ago
,
by Dealer
Looking for a top quality Upper Receiver at wholesale prices? Building off of our Best-Selling, 5-Star Rated, NBS Stripped Upper Receiver, the NBS AR-15 Assembled Upper is machined by one of the foremost manufacturers of mil-spec AR-15 components, and then has a Mil-Spec Upper Parts Kit installed, right in America. Normally these assembled uppers are only available to builders when purchased from a name brand at a substantial markup, but we’re making these available at wholesale prices.
What makes this upper different from other “Mil-Spec” upper receivers?
AR15Discounts
2640
6 hours ago
$199.95
Discover the ultimate compact powerhouse for your AR-15 build with the 7.5″ Slick Side Billet .223 Wylde Nitride Pistol M-LOK Complete Upper in FDE. Engineered for precision and reliability in close-quarters scenarios, this upper delivers exceptional performance without compromising on quality. Its short barrel and lightweight design make it ideal for maneuverable pistol configurations, whether for home defense, range training, or tactical applications.
- MPN: 30453
7 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
31365
20 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
20 hours ago
Geissele Super Duty MOD1 5.56 NATO 12.5" 1:7" CHF Chrome Lined Bbl DDC Complete Upper Receiver Group 08-545S is engineered for professional-grade performance with rugged components and battle-tested reliability. The 12.5-inch barrel is cold hammer forged and chrome lined, built to handle high round counts and extreme conditions without compromising accuracy. A 1:7 twist rate provides excellent stability for a wide range of 5.56 NATO bullet types, making this upper a versatile choice for any mission profile.
- UPC: 810081133951
- MPN: 08-545S
- Model: Geissele Super Duty Upper
22 hours ago
The Daniel Defense M4 V7 Upper Receiver Group is built around a Cold Hammer Forged 16” Government profile barrel. It features a mid-length gas system for smooth, reliable cycling and reduced wear on moving parts. A free-floating MFR 15.0 handguard offers incredible weight savings as well as superior cooling, ergonomics, and modularity while maintaining the strength and durability expected from Daniel Defense.
- UPC: 818773024051
- MPN: MIDWAY V7 URG
- Model: Daniel Defense DDM4 Upper Receiver Group
1 day 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
1949
1 day 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
1980
1 day ago
SKU 51655207040
Brand Palmetto State Armory
DETAILS
Barrel Length: 10.5"
Barrel Material: CHF Chrome Moly Vanadium
Gas System: Carbine
Chrome Lined: Yes
Muzzle Thread: 1/2-28
Chamber: 5.56
Twist Rate: 1:7
Barrel Extension: M4
Diameter at Gas Block: .750
Gas Block Type: F-Marked FSB
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4 T-Marked
Hand Guard Type: Quad Rail with Rail Covers
Rear Sight: Rock River Arms A2 Rear Sight
Bolt Carrier Group: PSA Custom Fathers of Freedom BCG by MicroBest with Sprinco Extractor Spring
1 day ago
FEATURES:
Barrel:7" 4150V Chrome Moly vanadium steel, nitride treated for durability and chambered in 5.56 NATO with a 1 in 7" twist, M4 barrel extension, and a pistol-length gas system. The barrel is nitride treated and finished off with a PSA 6" Lightweight Hex Full Picatinny M-Lok Free Float Rail, a .750" low-profile gas block, and an A2 style flash hider.
Upper: Forged 7075-T6 A3 AR upper is machined to MIL-SPECS and hard coat anodized. Uppers include forward assist and dust cover. These uppers are made for us right here in the USA by a mil-spec manufacturer.
DETAILS:
2 days 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
595
2 days ago
SKU: XP-URG-556-16-OR-A
The Expo Arms 5.56 NATO AR‑15 barreled upper receiver group features a 16" barrel with a 1:8 twist, 1/2x28 threaded muzzle, flash hider, and a mid‑length direct‑impingement gas system. This model does not include a bolt carrier group or charging handle, giving users the flexibility to choose their preferred components. The 15" free‑float M‑LOK handguard offers generous space for accessory mounting and maintains a clean, lightweight profile.
Features:
- AR-15 barreled upper receiver
- Barrel length: 16", 1:8 twist
- Gas system: direct impingement
- MPN: XP-URG-556-16-OR-A
2 days ago
Caliber: 5.56mm
Barrel Length: 14.50"
Twist: 1:7"
Barrel Description: Chrome Lined Steel
Barrel Finish: Black
Receiver Description: MIL-Spec M4
Handguard Finish: DDC
- UPC: 817953023198
- MPN: 08-159
2 days ago
$189.99
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"
2 days 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
2 days ago
SKU 51655158674
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: F-marked Front Sight Base
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: B5 Systems MLOK Carbine Handguard, Black
Bolt Carrier Group Includedo: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
2 days ago
DISCLAIMER:
This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.
NOTE: This upper assembly has a barrel less than 16” in length. These uppers are intended for use in AR-15 pistols or legal short-barreled rifles. Other configurations may violate Federal law.
- MPN: PA-FM9-8.5UPR-7IN
2 days ago
$279.99
Note: This complete upper receiver assembly has a barrel length under 16” and is therefore subject to all NFA rules and regulations. Know your local laws before purchasing.
- MPN: PAFM9-5UPR
2 days ago
The Expo Arms 9mm upper receiver group can be attached to a lower receiver to build a capable and versatile 9mm carbine. This blowback upper receiver features a 5.5" barrel, a 4" M-LOK handguard, a 1/2x36 threaded muzzle, and a flash hider. Because the charging handle and bolt carrier group are not included, users can personalize their 9mm pistol caliber carbine to achieve Expo Arms’ performance standards.
Features:
- AR-9 barreled upper receiver
- Barrel length: 5.5"
- Gas system: blowback
- 1/2x36 threaded muzzle
- 4-inch M-LOK handguard
- Flash hider
- BCG not included
- MPN: XP-URG-9MM-55
2 days ago
Discover the ultimate in compact firepower with the One Horse 10.5″ .300 BLK SOCOM Pistol 1:7 M-LOK Complete Upper. Engineered for tactical enthusiasts and home defenders seeking a reliable, versatile AR-15 upper, this assembly delivers exceptional performance in close-quarters scenarios. Chambered in .300 Blackout, it excels with both supersonic and subsonic ammunition, making it ideal for suppressed pistol builds where maneuverability and quiet operation are paramount.
Key Features
- UPC: 850078799326
- MPN: OH-CU05
4 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
6 days ago
This Dirty Bird Industries Complete Upper features a Black Nitride 16″ Sub-MOA Government Profile barrel chambered in 5.56 with a 1:7 twist. Built on a top-tier Forged Upper Receiver and finished with the brand new Dirty Bird’s V3 15″ SMRS M-LOK Handguard, containing several mounting upgrades, available in several color options. No corners are cut when manufacturing these complete uppers. All barrels are dimpled and cold blued, use a black nitride 4140 steel gas block and a stainless steel gas tube.
- UPC: 810084371206
6 days ago
$249.99
The One Horse 5.56 NATO Complete Upper Receiver is a purpose-built AR15 upper designed to deliver dependable accuracy, smooth cycling, and modular versatility. Built around a 16-inch 5.56 NATO barrel, this complete upper arrives fully assembled and ready to pin onto any Mil-Spec lower receiver. Whether you’re upgrading an existing rifle or completing a new build, this upper provides a reliable, work-ready foundation for range use, training, and defensive applications. Proudly made in the USA, it reflects a no-frills approach focused on performance and durability.
- UPC: 850078799289
- MPN: OH-CU02
6 days ago
SKU 51655227859
Brand Palmetto State Armory
DETAILS
Barrel Length: 16"
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread Pattern: 1/2" x 28
Twist Rate: 1 in 7"
Barrel Extension: M4
Gas System Length: Carbine Length
Diameter at Gas Block: .750"
Gas Block Type: F-marked Front Sight Base
Muzzle Device: A2-style
Receiver Material: Forged 7075-T6
Receiver Type: M4
Handguard Type: Prudent Wild Cat Gray Carbine Oval Handguard, Gray
FEATURES
- MPN: 51655227859
1 week ago
The IC-SPR Upper Receiver is manufactured using the highest quality materials and comes packed with LWRC exclusive features. The heart of the IC-SPR Upper is the short-stroke gas piston system, which builds upon the original Stoner design with a variety of improvements. One of which is the elimination of hot gasses being vented into the receiver and bolt carrier group, thus reducing the required cleaning regiment. The IC-SPR also comes standard with a nickel-boron coated bolt carrier for unmatched resistance to wear and corrosion while also providing permanent lubricity.
- UPC: 854026005859
- MPN: ICU5ODG16SPR
1 week 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 week ago
Wraithworks Slick Side Receiver is made from billet 7075 and is hard coat anodized.
Manufacturer Wraithworks
Caliber 5.56 NATO
Color Black
Recoil Pad No
SKU WARP15-UP-A
- UPC: 810046200247
- MPN: WARP15-UP-A
1 week ago
SKU 507020B
Brand Palmetto State Armory
Model Number 507020B
UPC 507020B
DETAILS
Barrel Length 10.5"
Carbine Gas System
Nitride finish Barrel
4150V Chrome Moly Vanadium barrel steel
5.56 NATO Chamber
1 in 7" Twist Rate
Chrome Lining - None
Barrel Extension: M4
Handguard Type: PSA Classic Polymer
F-Marked Front Sight Post
Muzzle Thread: 1/2-28
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6
Bolt Carrier Group Included: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
Charging Handle included: No
Overall Length: 18.5"
- UPC: 000000507020
- MPN: 507020B
1 week ago
SKU HR51655153218B
Brand Harrington & Richardson
DETAILS
Caliber: 5.56 NATO
Barrel Length: 11.5"
Barrel Profile: Pencil
Barrel Steel: 4150 Chrome Moly Vanadium
Barrel Finish: Parkerized
Chrome Lining: Yes
Muzzle Thread Pattern: 1/2" x 28
Twist Rate: 1 in 7"
Barrel Extension: M4
Gas System Length: Carbine
Diameter at Gas Block: .625"
Gas Block Type: Rifle Height Front Sight Base
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075-T6
Upper Receiver Type: C7, Feedramps
Handguard Type: Carbine, 6 hole, with heat shields
Bolt Material: Carpenter 158 Steel
- MPN: HR51655153218B
1 week 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
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
Engraved M4 Stripped Upper Receiver - Betsy Ross Flag Est. 1776This custom engraved M4 flat top upper receiver is machined to Military Specifications and comes precision engraved with a beautiful high contrasting image: "Betsy Ross Flag established '76". 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!
- MPN: UENG-M4-013
1 week ago
The Expo Arms 9mm barreled upper receiver group is ready to attach to a lower receiver to create a highly capable 9mm pistol caliber carbine. This blowback upper receiver features an 8.3" barrel, 7" M-LOK compatible handguard, 1/2x36 threaded muzzle, and flash hider. The omission of the charging handle and bolt carrier group allows shooters to utilize their own, creating a highly customizable 9mm pistol caliber carbine made to meet the high-performance standards of Expo Arms.
Features:
- AR-9 barreled upper receiver
- Barrel length: 8.3"
- Gas system: blowback
- 1/2x36 threaded muzzle
- MPN: XP-URG-9MM-83
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 NBS Left-Handed Slick Side Billet Upper Receiver is a quality, American made billet upper featuring a unique design that sets it apart from traditional forged upper receivers. Manufactured to exacting standards on five axis CNC machines from a solid block of aircraft grade aluminum, this stripped upper not only looks good… it is built to last.
• Compatible with mil-spec forged lower receivers and most billet lower receivers
• .250 takedown / pivot pin holes
• No forward assist
• Weight: 7.1oz
- MPN: 5162
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
,
by Dealer
$249.00
The .300 AAC Blackout cartridge was engineered to deliver excellent performance from shorter barrels, making the 10.5-inch platform one of the most practical and capable AR-15 configurations available. Whether you’re shooting lightweight supersonic loads or heavy subsonic ammunition, a properly built 10.5″ upper offers exceptional versatility in a compact package.
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
SKU 5165491720
Brand Palmetto State Armory
Model Number 5165491720
UPC 5165491720
DETAILS
Barrel Length: 8.5"
Gas System: Pistol-length
Barrel Profile: Heavy
Barrel Steel: Chrome Moly
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 5/8-24"
Chamber: 300AAC Blackout
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: 7" Lightweight M-Lok Rail
Bolt Carrier Group Included: No
Bolt Steel: N/A
- UPC: 005165491720
- MPN: 5165491720
1 week 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
1 week ago
SKU 51655158679
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, Olive Drab Green
Bolt Carrier Group Includedo: No
Bolt Steel: N/A
Bolt Carrier Profile: N/A
- MPN: 51655158679
1 week ago
Elevate your pistol caliber carbine (PCC) build with the NBS AR-9 Minimalist Billet Upper Receiver, a precision-engineered component designed for enthusiasts seeking lightweight performance without compromising durability. Crafted for 9mm and .45 ACP platforms, this billet upper delivers a sleek, minimalist aesthetic that reduces overall weight while maintaining compatibility with standard AR components, making it the ideal choice for custom AR-9 rifles and pistols.
Key Features:
AR15Discounts
480
1 week ago
The TacFire AR-15 .45 ACP Upper Receiver is an affordable, factory-assembled pistol caliber carbine (PCC)-style upper receiver designed for reliable performance and consistent accuracy. This complete upper receiver is built from forged aluminum and comes with a factory-assembled bolt carrier group (BCG), charging handle, dust cover, and forward assist. The high-performance steel barrel offers superior accuracy potential with most .45 ACP loads and bullet weights, and the factory-installed birdcage flash hider drastically reduces your flash signature for improved low-light performance.
- UPC: 729205554735
- MPN: BU-45ACP-4
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
Mil-Spec A3 Flat-Top Receiver w/M4 Feed Ramps, Forward Assist And Ejection Port Dust Cover.
7" 5.56NATO Barrel featuring a 1 in 7" Twist and threaded 1/2"x28. Complete with M4 Feed Ramps, Phosphate Finish And Pistol Length Gas System with Steel Gas Block. This would make a great addition to any pistol build.
Smith & Wesson Performance Center M4E Muzzle Break Flash Hider
Bowden Tactical 7" MLOK Free Float Handguard with Full Length Top Rail
M-LOK Rail Section with Aluminum Handstop - 3-slot Rail Section with QD Attachment Point
CDNN Sports
121
2 weeks ago
SKU: 3524
The NBS AR-9 Billet Upper Receiver is a quality, American made billet upper designed to be used on Pistol Caliber Carbine (PCC) builds. Most often PCC builds are either 9mm or .45 ACP. This billet upper features a unique design that sets it apart from traditional forged upper receivers. Manufactured to exacting standards on five axis CNC machines from a solid block of aircraft grade aluminum, this stripped upper not only looks good… it is built to last.
No Feedramps
Compatible with mil-spec forged lower receivers and most billet lower receivers
.250 takedown / pivot pin holes
- MPN: AR-9-UPPER
