Uppers Gun Parts
(596 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 month ago
SKU: 23-145-18027-047
Use Code "FREEAMMO" and get 1000 Rounds of PMC 223 FREE w/ PURCHASE!
- UPC: 815604015431
- MPN: 23-145-18027-047
- Model: Daniel Defense DDM4 Upper Receiver Group
1 month ago
It is the customer's responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16". Federal NFA regulations are applicable to this item.
SKU: 5165449744
UPC: 5165449744
MFR#: 5165449744
Barrel Length: 10.5"
Barrel Profile: A2 Style
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2-36
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
- MPN: 5165449744
1 month ago
The DDM4 V7 AR15 style Upper Receiver Group is built around a Cold Hammer Forged 16 inch barrel and equipped with a DD improved Flash Suppressor to reduce flash signature. 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: 815604018968
- MPN: 23-128-02339-047
- Model: Daniel Defense DDM4 Upper Receiver Group
1 month ago
The Geissele Super Duty Upper (Stripped) features the quality and workmanship you've come to expect from the Geissele name. At the heart of this stripped upper is a Super Duty upper receiver that mates to an MK16 Super Modular rail via a center aligning tab, removing any chance of rail rotation. This family of rails is renowned by operators for their performance and comfort. It features an in-house, Manganese Phosphate coated, CHF, Chrome Lined barrel. Geissele barrels are precision machined and cold hammer forged, utilizing the highest quality materials available.
- UPC: 817530275095
- MPN: 08-246S
2 months ago
Radical Firearms Complete Upper Assembly
300 Blackout
16" Barrel
1:8 Twist
Black Finish
15" RPR MLOK Handguard
A2 Flash Hider
- UPC: 816903024186
- MPN: CFU16-300HBAR-15RPR
2 months ago
$199.99
SKU 516447044
Brand Palmetto State Armory
Model Number 516447044
UPC 516447044
DETAILS
PSA 8.5" PISTOL-LENGTH 5.56 NATO 1/7 NITRIDE 7" LIGHTWEIGHT M-LOK UPPER W/O BCG OR CH
Barrel Length: 8.5"
Gas System: Pistol Length
Barrel Profile: A2 Style
Barrel Steel: 4150V
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: 000516447044
- MPN: 516447044
2 months ago
Matching sets include an upper receiver and hand guard that's ready to install onto your gun. The matching hand guard includes MLOK mounting points for accessories like lights and lasers, and the upper receiver has a Magpul M-LOK compatible design. Every surface of the hand guard is precision machined and chamfered to ensure no uncomfortable, sharp edges are found. The Cerakote finish gives a perfectly matching finish. The 7075-T6 billet aluminum upper receiver is precision CNC machined as a matching set.
- UPC: 817093024147
- MPN: R0642
2 months ago
Elevate your AR-15 build with the Noveske 4th Generation N4 5.56 Micro Switchblock 10.5″ Shorty Complete Upper Receiver – the ultimate compact powerhouse for tactical enthusiasts seeking precision and reliability in close-quarters scenarios. Engineered for suppressor compatibility and maneuverability, this black-finished upper delivers match-grade performance without compromising on durability, making it ideal for SBR or pistol configurations.
Key Features:
- UPC: 840906135273
- MPN: 3002568
2 months ago
The Maxim Defense MDX508 upper receiver is now available as a direct upgrade to your existing Mil-Spec lower receiver. It features an 8.5" barrel making it ideal for close-quarters situations. The included HATEBRAKE increases reliability and is tucked under the 9.5" handguard. These upper receiver groups ship complete, including a Maxim Defense Mil-Spec or SCW bolt carrier group, Radian Raptor charging handle, and Maxim Defense hand stop, ready to shoot right out of the box.
Features
Increased reliability due to included HATEBRAKE
Armorer level adjustable gas block
- UPC: 680017479084
- MPN: MXM-47908
2 months ago
Finish your next AR-10 build with the TacFire AR-10 .308 / 7.62x51mm Upper Receiver. This complete upper receiver group features 7075-T6 aluminum construction and a corrosion-resistant hard-coat anodized finish for lasting durability. The full-length Picatinny top rail on the upper receiver is perfect for your favorite optics and iron sights. The free-float handguard features M-LOK slots and a small Picatinny rail at the end for weapon-mounted accessories like weapon lights, lasers, and optics. The barrel features 4150 Chrome Moly Vanadium steel construction and a .750" gas block journal.
- UPC: 729205502378
- MPN: BU30820
2 months ago
Elevate your AR-15 build with the Noveske 4th Generation Carry Handle Upper N4 300BLK 7.94 Diplomat SS BLK 5/8×24, a premium complete upper receiver engineered for unmatched versatility in close-quarters and suppressed shooting. Chambered in 300 Blackout, this compact powerhouse delivers subsonic stealth and supersonic punch, making it the ideal choice for tactical enthusiasts seeking reliability without compromise.
Key Features
- UPC: 840906138823
- MPN: 3002716
2 months ago
Quick Overview
free shipping Free Shipping applies to this item only and not the entire order.
It is the customer's responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16". Federal NFA regulations are applicable to this item.
SKU: 5165449836
UPC: 5165449836
MFR#: 5165449836
- MPN: 5165449836
2 months ago
SKU 5165449196
Brand Palmetto State Armory
UPC 5165449196
DETAILS
PSA 10.5" Carbine-Length 5.56 NATO 1/7 Nitride 12" Lightweight M-Lok Upper With BCG & CH - 5165449196
- 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: 1/2-28
- Chamber: 5.56 NATO
- Twist Rate: 1:7
- Barrel Extension: M4
- Diameter at Gas Block: .750
- Gas Block Type: Low-profile
- Muzzle Device: Palmetto State Armory Fluted Flash Can
- Receiver Material: Forged 7075 T6
- MPN: 5165449196
2 months ago
,
by Dealer
Grab a 300blk upper in time for hunting season or plinking. Features:
8.5″ 4150 CMV 300 Blackout Ar15 Barrel
1:8 Twist
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
2 months ago
SKU 5165449628
Brand Palmetto State Armory
Model Number 5165449628
UPC 5165449628
DETAILS
Barrel Length: 10.5"
Barrel Profile: Heavy
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: A3
Handguard Type: Lightweight M-Lok 10.5" Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
- UPC: 005165449628
- MPN: 5165449628
2 months ago
Elevate your AR-15 build with the Noveske 4th Generation Carry Handle Upper N4 300BLK 7.94 Diplomat SS BLK 5/8×24, a premium complete upper receiver engineered for unmatched versatility in close-quarters and suppressed shooting. Chambered in 300 Blackout, this compact powerhouse delivers subsonic stealth and supersonic punch, making it the ideal choice for tactical enthusiasts seeking reliability without compromise.
FEATURES
- UPC: 840906138823
- MPN: 3002716
2 months ago
$115.58
Looking to build a high-quality retro looking AR? Start your project with our A1 stripped upper receiver with M4 Feed Ramp. Comes with the standard features of a Mil-Spec upper receiver and is forged from 7075-T6 aluminum with a black hard coat anodized, tough finish.
Details:
Finish/Color Black
Fit: AR15
Manufacturer: Luth-AR
Manufacturer Part #: UR-01-E3-M4
Model A1
Model II Stripped
Type: Upper
- UPC: 812058030621
- MPN: UR-01-E3-M4
2 months ago
,
by Dealer
If you’re looking for the perfect balance between compact handling and real 5.56 performance, the 12.5″ AR-15 upper has become one of the most popular configurations among experienced builders.
This 12.5″ 5.56 AR15 upper receiver from Mid State Firearms delivers exactly that balance—combining a durable 4150 CMV nitride barrel, mil-spec forged upper, and a lightweight 11″ MxF M-LOK rail for a reliable, modern setup that’s ready for range use, duty setups, or defensive builds.
2 months ago
SKU 51655157796
Brand Palmetto State Armory
DETAILS
Barrel Length: 18"
Gas System: Rifle-length
Barrel Profile: A2 Style
Barrel Steel: 416R
Barrel Finish: Stainless Steel
Chrome Lining: None
Muzzle Thread: 1/2-28
Chamber: .223 Wylde
Twist Rate: 1:7
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: No
Charging Handle Included: No
2 months ago
$199.99
SKU 51655153206
Brand Palmetto State Armory
DETAILS
Barrel Length: 7.5"
Gas System: Pistol Length
Barrel Profile: Heavy
Barrel Steel: 4150V Chrome-Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: None
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: A2 Style Flash Hider
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 7" Lightweight M-Lok Free Float Rail
Bolt Carrier Group Included: No
Charging Handle Included: No
Overall Length: 16"
- MPN: 51655153206
2 months ago
Finish your next AR-10 build with the TacFire AR-10 .308 / 7.62x51mm Upper Receiver. This complete upper receiver group features 7075-T6 aluminum construction and a corrosion-resistant hard-coat anodized finish for lasting durability. The full-length Picatinny top rail on the upper receiver is perfect for your favorite optics and iron sights.
- UPC: 729205515323
- MPN: BU30818
2 months ago
Step into the timeless world of retro AR-15 builds with the Luth-AR A1 Stripped AR-15 Upper Receiver in Slick Side configuration. Crafted for enthusiasts seeking authentic early-style precision, this upper receiver delivers the classic A1 profile without modern frills, allowing you to customize a rifle that honors historical designs while maintaining modern reliability. Perfect for collectors, historians, and builders who demand accuracy in every detail, it’s your foundation for a standout retro firearm.
Key Features
- UPC: 812058031284
- MPN: UR-01-E3-S
2 months ago
$466.39
This Zaffiri Precision Complete Upper takes the time tested ZPS.1 slide and blended it with the Blowhole Compensator allowing you to manage that unruly gas. Gain the flat shooting features of a compensated setup without the threaded barrel. The single billet 17-4 stainless steel slides are made with tight tolerances that allow an increase in accuracy and performance. These are among the best aftermarket slides available for Glock. This slide is pre-cut and pre-coated.
- UPC: 658792265710
- MPN: ZPS.B.43.BLK.CU
2 months ago
The Maxim Defense PDX upper receiver is built to handle the fierce demands of the Tier 1 community and designed to install on any Mil-Spec lower receiver. With the PDX U.R.G, you dominate close-quarter encounters and achieve maximum energy on target without sacrificing accuracy at distance. At just 14" in overall length and a 5.5" barrel, the PDX U.R.G. is the ultimate choice for when concealment and personal defense is non-negotiable. The included HATEBRAKE increases reliability and is tucked under the M-Lok handguard.
- UPC: 680017478124
- MPN: MXM-47812
- Model: Maxim Defense PDX Upper Receiver
2 months ago
300 Blackout Ar-15 Pistol length ‘Grab Bag’ upper. Sometimes we receive some cosmetically blemished parts, or a customer might back out on an order, or we may have leftover gun-show inventory. This is an assembled upper (option to add BCG / Charging Handle) that will come with a free float handguard style of your choice! Picatinny Quad Rail or Slim M-Lok! Lengths and rail type may vary. The receiver itself might be forged or billet, and may or may not have dust cover / forward assist features.
Mid State Firearms
7732
2 months ago
This BCA AR-15 complete bufferless 9MM rifle length bufferless (Patent Pending) upper has a 16" M4 barrel with a parkerized finish, and features a 1:10 twist rate, with a blow back gas system. It includes the BCA Talon 15" MLOK split rail, an M4 flat-top 7075 billet aluminum upper receiver, a BCA bolt carrier group, a flash hider, and Gen 2 (patent protected) right Side Charging handle. This 9MM upper is fits on a mil-spec AR-9 lower.
Specifications:
SKU UASC-2118-9MMCM416110PBUF-15ASR
Weight (lbs) 6.0
Magazine Capacity N/A
Barrel Length 16
Profile M4 Contour
Twist 1:10
2 months ago
The FN 15 SRP G2 Upper Receiver Assembly is streamlined, providing a multitude of MIL-SPEC configurations to meet and exceed your needs. The FN 15 SRP G2 offers a lightweight design with extended hand guard maximizing top rail space with multiple M-LOK slots and QD points for maximum configurability. Chambered in the battle-proven 5.56x45mm, these uppers offer reliability and accuracy in every mission.
Features
Lightweight with maximum 12 o'clock rail space
Chrome lined barrel with pinned low-profile gas block
M16 style bolt carrier, bolt MPI inspected and marked
- UPC: 845737015947
- MPN: 20-100746
2 months ago
The FN 15 DMR3 Upper receiver enables you to keepon target for faster shot-to-shot recovery by the combinationof the 18-inch hybrid profile barrel, rifle-length gas system,and SureFire ProComp muzzle brake that greatly reduces both recoil impulse and muzzle rise. At the heart of this upper receiver is the FN hammer forged, 18-inch, 1:8 twist, chrome lined barrel. The barrel has FN's Hybrid profile that provides the stiffness and heat absorption needed for accurate, high volume shooting.
- UPC: 845737015978
- MPN: 20-100749
2 months ago
$299.99
SKU 5165448205
Brand Palmetto State Armory
Model Number 5165448205
UPC 5165448205
DETAILS
Barrel Length: 16"
Gas System: Mid-length
Barrel Profile: A2 Style
Barrel Steel: 416R
Barrel Finish: Stainless Steel
Chrome Lining: No
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
Hand guard Type: PSA 13.5" Lightweight M-lok Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
- UPC: 005165448205
- MPN: 5165448205
2 months ago
The TacFire AR-10 Low-Profile Stripped Upper Receiver features precision-machined 7075-T6 billet aluminum construction with a Type III Mil-Spec anodized finish for exceptional strength and longevity. The low-profile design eliminates snag risks while a full-length flat-top accessory rail offers ample attachment space for flip-up iron sights, red dots, and rifle scopes. Includes dust cover. Compatible with most Mil-Spec lower receivers.
- UPC: 729205612718
- MPN: UP308-NFA-C
2 months ago
This CMMG AR-15 Dissent Mk4 Upper Receiver Assembly is designed to pair with any standard AR15 pattern lower group. Utilizing a patent pending direct impingement Compact Action, DISSENT upper groups house the entire action and recoil assembly in the upper receiver resulting in less bulk and length than traditional AR pistols. The forward non-reciprocating side charger allows for quick bolt operation without coming off target. Direct impingement DISSENTS come equipped with a left side charger standard. Harness the capability of 22 ARC in this uniquely designed Dissent upper.
- UPC: 810148627492
- MPN: 28B940C-MB
- Model: CMMG Dissent Upper
2 months ago
Looking to build out a PCC or AR-9 pistol? The TacFire AR-15 9mm Upper Receiver is a rock-solid foundation for your next 9mm AR build. Precision-machined from durable 6061-T6 aluminum and finished with a Type III hardcoat anodizing, this upper is built to handle the rigors of range days, training sessions, and defensive applications alike. Designed specifically for blowback-operated 9mm AR setups, this receiver is manufactured to ultra-tight Mil-Spec tolerances, ensuring proper fitment with most AR-15 lower receivers and 9mm bolt carrier groups.
Specifications
Color: Black
- UPC: 729205519314
- MPN: BU9MM10
3 months ago
SKU 51655211248
Brand Palmetto State Armory
DETAILS
Barrel Length: 8.5"
Barrel Profile: Medium
Gas System: Pistol-length
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 5/8 x 24"
Chamber: 338 ARC
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 7" Lightweight Hex M-Lok Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: 9310, Nitride Coated
3 months ago
SKU 51655156158
Brand Palmetto State Armory
DETAILS
Barrel Length: 7"
Barrel Profile: Heavy
Gas System: Pistol-Length
Barrel Steel: 4150V Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: None
Muzzle Thread: 5/8 x 24
Chamber: 300 Blackout
Twist Rate: 1/8
Barrel Extension: M4
Diameter at Gas Block: .750"
Gas Block Type: Low-Profile
Muzzle Device: A2 Flash Hider
Receiver Material: Forged 7075 T6 Aluminum
Receiver Type: M4
Handguard Type: PSA 6" Lightweight Hex Full Picatinny M-Lok Free Float
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
- MPN: 51655156158
3 months ago
,
by Dealer
Aero Precision M5 (.308) Stripped Upper Receiver – Anodized Black
Precision-Engineered Upper for Your .308 Build
The Aero Precision M5 (.308) Stripped Upper Receiver is the ideal starting point for a high-performance AR10 build. Forged from 7075-T6 aluminum, this upper receiver is built to handle the demands of larger calibers while maintaining a lightweight and durable design. The Anodized Black finish offers superior corrosion resistance and a sleek, tactical appearance.
Key Features
M4 Feedramps – Ensures reliable feeding and function.
- MPN: APAR308503C
3 months ago
$999.99
The CMMG DISSENT Mk4 AR-15 6.5" CM 5.7x28 Upper Receiver w/ 5.5" M-LOK Handguard is a next-gen AR pistol upper receiver group. Compatible with CMMG DISSENT Mk4 and most Mil-Spec AR-15 lower receivers (when used with 5.7 AR conversion mags), this upper receiver group features a patented compact direct impingement operating system that eliminates the need for a standard buffer tube and recoil system, resulting in a more compact and easy-to-maneuver firearm than a typical direct impingement platform.
- UPC: 810097509412
- MPN: 57BA8AEAB
- Model: CMMG Dissent Upper
3 months ago
SKU 507020
Brand Palmetto State Armory
Model Number 507020
UPC 507020
DETAILS
PSA 10.5" 5.56 NATO 1:7 NITRIDE UPPER - WITHOUT BCG OR CHARGING HANDLE
10.5" Barrel Length
Carbine Gas System
Nitride Treated Barrel
Chrome Moly Vanadium barrel steel
5.56 NATO Chamber
1 in 7" Twist Rate
PSA Standard Handguards
F-Marked Front Sight Post
A2 Flash Hider
Forged Upper Receiver
Weight as Configured: 2.9 lbs
FEATURES
- UPC: 000000507020
- MPN: 507020
3 months ago
The Faxon AR-15 Duty Series SOCOM Upper Receiver Assembly is built for hard-use reliability. The SOCOM profile barrel delivers forward mass for excellent heat dissipation, minimized mirage, and consistent accuracy during rapid or sustained fire- ideal for training, defense, LE/mil applications, or hard-use builds.
Features
SOCOM Profile for heat resistance, reduced mirage, and accuracy under sustained fire
Duty Series 4150 CMV barrel with 1:8 twist for versatile 55- 77gr stabilization
Black Nitride (QPQ) finish for corrosion/wear resistance and easy cleaning
- UPC: 810209950651
- MPN: FX-URG-D55616SA13-BU-SR
3 months ago
Quick Overview
free shipping Free Shipping applies to this item only and not the entire order.
SKU: 5165451260
UPC: 5165451260
MFR#: 5165451260
Barrel Length: 16"
Barrel Profile: A2 Style
Barrel Steel: Chrome Moly Vanadium
Barrel Finish: Nitride
Chrome Lining: No
Muzzle Thread: 1/2-36
Chamber: 9mm (9x19)
Twist Rate: 1 in 10"
Barrel Extension: 9mm
Muzzle Device: A2 Style Flash Hider
Receiver Material: Billet 7075 T6
Receiver Type: Slick Side
Handguard Type: PSA 15" Lightweight M-Lok Rail
Bolt Included: Yes, (Gen 4, Hybrid)
Bolt Steel: 8620, Nitride Treated
- MPN: 5165451260
3 months ago
Engineered for superior maneuverability and rapid target acquisition, this upper delivers reliable performance in close-quarters scenarios, making it ideal for home defense, tactical training, or custom SBR projects. Crafted with precision components, it combines a lightweight design with enduring durability to meet the demands of discerning shooters who prioritize accuracy and control.
3 months ago
$599.99
Convert your Mil-Spec AR-15 into a 5.7x28mm powerhouse with the Panzer Arms AR57 ULT AR-15 Steel 5.7x28mm Upper Receiver. This complete upper receiver group comes with your choice of a 12" or 16" steel barrel featuring a 1:8.5 FN twist for superior accuracy and precision, with 1/2x28 threads perfect for your favorite muzzle devices. Plus, a perforated muzzle brake helps tame recoil for flatter shooting and quicker follow-up shots.
- UPC: 051497297985
- MPN: ULT 0116
3 months ago
SKU 51655155045
Brand Palmetto State Armory
DETAILS
Barrel Length: 16”
Barrel Material: 416R Stainless Steel
Barrel Finish: Stainless/Natural
Barrel Profile: A2 Style
Chamber: 5.56 NATO
Twist Rate: 1 in 7”
Extension: M4
Gas System: Mid-Length
Gas Block Type: Low Profile .750” Diameter
Upper Receiver: Forged 7075 T6 Aluminum
Receiver Style: M4 Flat top with feed ramps
Receiver Finish: Hardcoat Anodized
Forward Assist: Yes
Dust Cover: Yes
Handguard Style: PSA 13.5" Hex Full Picatinny M-Lok Free Float Rail
Bolt Carrier Group Included: Yes
Bolt Steel: Carpenter 158
- MPN: 51655155045
3 months ago
The Faxon Duty Series 16" 350 Legend Complete Upper delivers a ready-to-install, high-quality AR-15 upper built around the straight-wall .350 Legend cartridge- perfect for hunters in restricted states and shooters seeking low-recoil, reliable performance. This complete upper includes a proven Duty Series barrel, lightweight handguard, and comes fully assembled with a superfinished BCG and charging handle for immediate drop-in compatibility and function.
- UPC: 810209950606
- MPN: FX-URG-D350L16GA15-C
3 months ago
Designed for law enforcement, but available to everyone, this complete AR-15 upper assembly from Spikes Tactical has a mid length gas system. It features a 16" government profile Mil-Spec barrel with 1:7" twist, a Spikes Tactical Mil-Spec bolt carrier group and F-marked A2 front sight base. It has mid-length handguards and an A2 flash hider. This upper assembly just needs your completed lower receiver to be a great modern sporting rifle.
Specifications and Features:
5.56 NATO (accepts .223 Remington)
CNC machined from 7075-T6 forging
Extended M4 feed ramps machined before anodizing
- UPC: 815648021221
- MPN: STU5035-MLS
3 months ago
This AR-STONER Classic upper features a mil-spec bolt carrier group with a phosphate finish, A2 fixed front sight, and a government profile barrel. The A3 upper will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, bolt and bolt carrier assembly. With a 1 in 7" twist, the 16" barrel provides outstanding accuracy. This pre-ban style upper includes a bayonet lug and A2 flash hider with a 1 3/8 sling loop.
- MPN: U55616CFSBM4
3 months ago
$999.99
Take your custom AR9 PCC build to the next level with the CMMG RESOLUTE AR-15 16.1" CM 9mm Upper Receiver w/ EML 15" M-LOK Handguard from GunMag Warehouse. Built around a radial-delayed blowback system, this factory-assembled receiver group features 6061-T6 billet aluminum construction with a Cerakote finish for maximum durability and unwavering wear resistance while maintaining a lightweight profile.
- UPC: 810097505575
- MPN: 99BE6B6AB
- Model: CMMG Resolute Upper
3 months ago
,
by Dealer
Finally get a quality, true-to-form reproduction M16A1 Upper Receiver for a fraction of the cost. These are machined from 7075-T6 forgings specifically designed to have the correct proportions and profile of the original M16A1 Upper Receiver. Machine work is performed by true craftsmen with careful attention to detail.
These uppers are finished with Mil-Spec type 3 hard anodizing which has the best likelihood of matching most mil-spec forged lower receivers.
This is the proper upper to use for the following reproduction builds:
XM16E1
M16A1
Model 607
Model 609 (XM177E1)
- UPC: 84810084374177
3 months ago
$999.99
Compatible with Mk4 and Mil-Spec AR-15 receivers (requires 9mm conversion mags), the CMMG DISSENT Mk4 AR-15 6.5" CM 9mm Upper Receiver w/ 5.5" M-LOK Handguard offers smooth operation and unparalleled accuracy potential with most 9mm loads. Built around a patented compact direct impingement operating system for a super-compact and easy-to-maneuver firearm platform, this upper receiver boasts billet 6061-T6 aluminum construction with a corrosion-resistant Cerakote finish for exceptional strength and lasting wear resistance under punishing conditions.
- UPC: 810097509788
- MPN: 94B6829AB
- Model: CMMG Dissent Upper
4 months ago
*Tungsten Cerakote done in-house by Bear Creek Kustom Kote
*30% less weight with BCA Talon split rail than regular MLOK !
This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" M4 contour barrel with a parkerized finish, and features a 1:8 twist rate, with a carbine length gas system. It includes the BCA Talon 15" MLOK split rail, an M4 flat-top 7075 forged aluminum upper receiver a BCA bolt carrier group, and a rear charging handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower.
More Information:
Color Tungsten Cerakote
SKU UAFC-4038-556CM41618-15TNGSR
4 months ago
The Daniel Defense AR-15 DD4 RIII Upper Receiver Assembly is built around a Cold Hammer Forged Government Profile barrel, a GRIP-N-RIP Charging Handle, and carbine length gas system, known to have a smoother recoil impulse, which adds to this upper's accuracy by allowing for quick but precise rapid fire. It features a lightweight RIS III rail—modeled after the revolutionary RIS II two-piece handguard developed for SOCOM—features M-LOK attachment for lighter weight while still offering M203 grenade-launcher attachment.
- UPC: 818773023672
- MPN: 23-191-02397-011
- Model: Daniel Defense DD4 RIII Upper Receiver Group
4 months ago
,
by Dealer
Davidson Defense .350 Legend AR-15 Rifle
Featuring Davidson Defense Upper
.350 Legend 16" 4150 CMV Nitride 1:16T
15" M-Lok Gauntlet Arms Free Float Handguard
Complete Upper Build
.350 Legend / 9x43mm
Davidson Defense
148
4 months ago
,
by Dealer
Description
One of the key benefits of the AR-15 platform is the ability to change calibers by simply swapping a complete upper assembly, or by replacing the individual components—the bolt, barrel, and upper or lower receiver. Matrix Arms’s 5.56 Stripped Upper Receiver gives you all the same precision and durability you’ve come to expect from our AR-15 Upper Receivers, but at a stripped-down, leaner weight—perfect for added mobility and longer deployments in the field.
Lightweight and Durable
Go to deal
229
4 months ago
All parts manufactured by PWS are done so on state of the art CNC Machines. Any components that are not produced by PWS are purchased from only the best manufacturers to ensure the highest quality products are delivered to the end user.
FEATURES & SPECS:
– Manufacturer PRIMARY WEAPONS SYSTEMS INC
– Model MK116 MOD 1-M Upper
– SKU: 18-M107UF0B
– UPC: 811154030436
– Operating System: PWS Long Stroke Piston System, 3 setting Adjustable Gas Regulator
– Caliber: 7.62x39
– Barrel Length: 16.1"
– Gas System Length: Carbine
– Barrel Twist Rate: 1:10
– Muzzle Velocity: 2374 fps
- UPC: 811154030436
- MPN: 18-M116UF0B
4 months ago
Upgrade your M4/AR rifle or lower assembly with this complete, drop-in M400 upper assembly. This kit includes all the necessary components for a complete swap, including a two-stage match trigger as well as the popular TANGO-MSR LPVO 1-6X24 (SFP) riflescope. The free-floating handguard utilizes a new steel lockup design that significantly reduces handguard deflection by providing maximum rigidity and allows for accessories to be attached on all four sides with no effect on accuracy.
Sig Sauer
255
4 months ago
Start a new build or have a backup upper receiver group on hand just in case with the TacFire AR-15 .223 / 5.56 Upper Receiver. The free-float handguard features M-LOK slots and a small Picatinny rail at the end for weapon-mounted accessories like weapon lights, lasers, and optics. This complete upper receiver group features 7075-T6 aluminum construction and a corrosion-resistant hard-coat anodized finish for lasting durability. The full-length Picatinny top rail on the upper receiver is perfect for your favorite optics and iron sights.
- UPC: 729205518300
- MPN: BU55610
4 months ago
Elevate your AR-15 build with the Obsidian Arms 15C2 Lightweight Billet Upper Receiver in sleek black. Crafted for enthusiasts who demand precision and performance without the extra weight, this upper receiver is the perfect foundation for a custom rifle that excels in speed and agility.
Key Features
Ultra-Lightweight Design: At just 7.2 ounces, it shaves significant weight from your setup, enhancing maneuverability during extended range sessions or tactical drills.
- MPN: OA-15C2-UR-BLK
4 months ago
Upgrade your AR-15 build with the Obsidian Arms 9C Pistol Caliber Billet Upper Receiver in Black, engineered for precision and performance in pistol caliber carbine setups. Crafted from premium 7075-T6 billet aluminum, this lightweight upper delivers exceptional durability without the bulk, allowing you to focus on accuracy and control during extended shooting sessions. Ideal for enthusiasts building 9mm or rimfire platforms, it provides seamless compatibility and reliable function, transforming your firearm into a versatile, high-efficiency shooter.
Key Features
- MPN: OA-9C-UR-BLK
4 months ago
The Radical Firearms 5.56mm upper is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the range. No matter what your style of shooting is, Radical Firearms has you covered.
SPECIFICATIONS:
– Manufacturer: Radical Firearms
– Manufacturer Part #: RF00325
– Type: Upper
– Caliber: 223 Remington/556NATO
– Barrel Length: 16"
– Color: Black
– Type of Barrel: 1:7
– Description: MLOK
– Muzzle Device: A2 Flash Hider
– Handguard Style: M-LOK Thin Rail
- UPC: 816903025633
- MPN: RF00325
4 months ago
SKU: 516447329
UPC: 516447329
MFR#: 516447329
Barrel Length: 7"
Barrel Profile: A2
Gas System: Pistol-length
Barrel Steel: 4150V 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: PSA Fluted Flash Can
Receiver Material: Forged 7075 T6
Receiver Type: M4
Handguard Type: PSA 9" Lightweight M-Lok Free Float Rail
Optics: Magpul Front and Rear MBUS Back Up Sights
Bolt Carrier Group Included: Yes
- MPN: 516447329
4 months ago
,
by Dealer
North Hollywood Shootout Dissipator A4 16" 5.56 Rifle Length Gas System Upper W Carry Handle
Not a Fake Midlength Dissipator, this one feature a rifle length gas system for your retro build. Assembled and ready to mount to your lower.
Does Not with BCG or Charging Handle. Use Option On The Right if You Wish To Add
FEATURES:
16" KAK 4150 Nitride 1x7 5.56 Barrel Rifle Length Gas System
Flat top A4 Upper with M4 Feed Ramps
F Marked Gas Block, and Rifle Length Gas Tube
2 Taper Pins
Front Sight
Front Sight Detent
Front Sight Detent Spring
Sling Swivel
Sling Swivel Rivet
Karri's Guns
2339
