Uppers Gun Parts

(3,404 deals total)

Bear Creek Arsenal Complete AR-15 .22 Magnum Upper Assembly 10.5" .22 Magnum Parkerized 1-16T Barrel Direct Blowback, Heavy Profile Side Charging Upper Side Charging Bolt Carrier & Charging Handle Included (Pre-Assembled, Ready To Ship) About This Assembled Upper: - About This Assembled Upper:

SKU: 5165492580 UPC: 5165492580 MFR#: 5165492580 Barrel Length: 11.5" 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: PSA A2 Flash Hider Receiver Material: Forged 7075 T6 Aluminum Receiver Type: M4 Handguard Type: PSA 10.5" Lightweight M-Lok Rail Bolt Carrier Group Included: Yes Bolt Steel: Carpenter 158 Bolt Carrier Profile: Full-auto

SPECIFICATIONS UPPER RECEIVER: AR-15 Mil-Spec Machined out of 7075-T6 Forged Aluminum, M4 Feed Ramps, Type III Hardcoat Anodized Black with Forward Assist and Ejection Port Cover Installed BARREL: 18 inch, 6.5 Grendel Caliber, 4150 Chrome Moly Vanadium Steel, 1:8 Twist, Govt Profile, Nitride/Melonite Treated - made by Tactical Kinetics HANDGUARD: 15 inch M-LOK Free Floated, Machined out of 6061 T6 Aluminum – made by Bowden Tactical GAS SYSTEM: Mid Length, Direct Impingement, Stainless Steel Tube GAS BLOCK: Low Profile Gas Block, Machined out of 4140 Steel

Davidson Defense "Vector" AR-15 Rifle Featuring Davidson Defense Upper .223 Wylde 16" 416R SS PVD Gold 1:8T Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Viuda" LR-308 Rifle Featuring Davidson Defense Upper 6.5 Creedmoor 20" 4150 CMV 1:8T 19" M-Lok Lakota Ops Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 6.5 Creedmoor / 6.5x48mm

RTB Complete 16" 5.56 Lightweight Upper Receiver | A2 | 15" M-LOK | With Bolt Carrier Group and Charging Handle This Complete 16 inch M-LOK lightweight upper receiver comes with our RTB 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 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean.

RTB Complete 16" 5.56 Lightweight Upper Receiver | A2 | 12" M-LOK | With Bolt Carrier Group and Charging Handle This Complete 16 inch M-LOK lightweight upper receiver comes with our RTB 12 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean.We also carry this Upper Receiver unassembled here if you are a DIYer / Do It Yourselfer.

100-040-505WB AR-15 14.5 Super Duty Stripped Upper Receiver DDC Mfr Part: 08246S Item Details Cartridge: 5.56 mm NATO Contour: Geissele Finish: DDC Length: 14.5" Style: Stripped Twist: 1-7 Made in the USA Make Model Make: AR-15 The Geissele Super Duty Upper (Stripped) features the quality and worksmanship you've come to expect from the Geissele name.

Craft the build out of your dreams with the Aero Precision AR15 Complete Upper Receiver. These AR15 Upper Receivers from the innovators at Aero Precision feature a 5.56 barrel that is chambered for precision shooting. With a standard A2 flash hider, the Aero Precision 5.56 w/Magpul Complete Upper Receiver reduces overall flash while looking stylish. Forged from aluminum, this aftermarket accessory competes your upper receiver. Precision machined, the Aero Precision MOE SL Handguard Complete Upper Receiver lives up to the quality standards of civilians, military, and LEO.

This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. Specifications for Aero Precision M4E1 Enhanced 16in .300 Blackout Quantum Handguard Complete Upper Receiver: Caliber: .300 AAC Blackout Barrel Twist Rate: 1-7 Gun Rail: M-LOK Gun Model: AR-15 29D-URC-M4E130016BQ-APAR640102M4 UPC#: 840014603985

Davidson Defense "Rapier" AR-15 Rifle Featuring Davidson Defense Upper .223 Wylde 16" 416R SS Stainless 1:8T 12" M-Lok Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "Mammoth" AR-15 Rifle Featuring Davidson Defense Upper .223 Wylde 16" 416R SS Stainless 1:8T 12" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "Mammoth" AR-15 Rifle Featuring Davidson Defense Upper .223 Wylde 16" 416R SS Stainless 1:8T 12" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

430-103-075WB M4E1 THREADED COMPLETE UPPER 350 LEGEND 20" QPQ CARBINE FDE Mfr Part: APAR700716M100 Cartridge: 350 Legend Finish: Cerakote Style: Complete Color: Flat Dark Earth Contour: Carbine Length: 20" M4E1 Threaded Upper Receiver Features: - New enhanced forging that gives the upper receiver a "billet look" - New picatinny profile that blends seamlessly with our Enhanced Series Handguards - M4 Feedramps - .250 takedown pin holes - Laser engraved T-marks - Includes port door and forward assist installed UPC#: 840014617715

Add this filler to your cart to get the code working - HERE 430-102-441WB BRN-180S 10.5" .223 UPPER RECEIVER CERAKOTE GRAY Cartridge: 223 Wylde Finish: Cerakote Color: Gray Length: 10.5" BRN-180® Upper Receiver Group Gen2 – Reliable Piston System Made Even More Versatile

Davidson Defense "Subdominant" AR-15 Rifle Featuring Davidson Defense Upper 7.62x39mm 16.25" 4150 CMV Nitride 1:9T 10" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 7.62x39

Davidson Defense "Arenal" AR-15 / AR-9 Pistol Upper Receiver 5.25" 9MM 4150 CMV QPQ Nitride 1-10T Barrel Premium 4" M-Lok Handguard (Assembled or Unassembled) An AR-9 is similar to an AR-15 except it fires 9MM ammunition. If You Don't Have An AR-15 Pistol Yet, Now Is The Perfect Time To Build One. At This Price There's No Reason Not To Add One To Your Arsenal. This Pistol Upper Kit Once Assembled With Your Favorite Lower And Brace, Will Easily Fit Into Any Collection And Take Up Minimal Space.

AR-15 5.56/.223 10.5" Pistol Hybrid Mlok Upper Assembly Includes: Chamber - 5.56 NATO (Shoots both .223 and 5.56) Barrel Twist - 1x7 Barrel Thread - 1/2 x 28 Barrel Steel - 41V50 CMV, M4, Parkerized Flash Hider - A2 Handguard - 10" Anodized Slim Mlok Free Float (some variations of rail may apply based on stock availability, same excellent quality) Gas Block - .750 Low Profile Gas Block, aircraft aluminum, pistol gas system Upper Receiver - A3 Flat-Top Upper, hardcoat anodized, assembled with forward assist and dust cover. M4 feedramps. Bolt Carrier Group - Not Included

Davidson Defense "Primogen" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 10.5" 4150 CMV Nitride 1:7T 10" M-Lok Davidson Defense Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Itasha" AR-15 Pistol Featuring Davidson Defense Upper 9MM 4.5" 4150 CMV Nitride 1:10T 4 M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

Davidson Defense "Nannerism" AR-15 Pistol Featuring Davidson Defense Upper 9MM 8.5" 4150 CMV Nitride 1:10T 7" M-Lok Davidson Defense Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

SKU 5165448559 Brand Palmetto State Armory Model Number 5165448559 UPC 5165448559 DETAILS Barrel Length: 16" Gas System: Pistol Length Barrel Profile: Heavy Barrel Steel: 4150V Chrome Moly Vanadium Barrel Finish: Nitride Chrome Lining: None Muzzle Thread: 5/8-24 Chamber: 300 AAC Blackout Twist Rate: 1 in 8" 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 M-Lok Rail Partial Picatinny Free Float

Davidson Defense "Donlon" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 10.5" 4150 CMV Nitride 1:8T Carbine M-Lok A*B ARMS Drop-In Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

This AR15 Complete Upper features a 20", 10.5", or 16" 5.56 Rifle Length Barrel w/ Pinned FSB and Magpul MOE Rifle Length Handguard Specifications for Aero Precision AR15 5.56 w/Magpul MOE Handguard Complete Upper Receiver: Caliber: 5.56x45mm NATO Muzzle Device: A2 Flash hider Gun Model: AR-15 29D-UFH-AR556MOE-APAR502503M3 UPC#: 840014604630 Color: BlackFinish: Anodized BlackBarrel Length: 10.5 inGas System Length: Carbine Length Code:29D-UFH-AR556MOE-APAR502503M3 MPN:APAR502503M3 UPC:840014604630

This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. Specifications for Aero Precision M4E1 Enhanced 8in .300 Blackout Quantum Handguard Complete Upper Receiver: Caliber: .300 AAC Blackout Barrel Length: 8 in Barrel Twist Rate: 1-7 Handguard Length: 7 in Gun Rail: M-LOK Gun Model: AR-15 Weight: 39.84 oz 29D-URC-M4E1E3008QH-APAR640111M1 UPC#: 840014603954

SKU 5165490473 Brand Palmetto State Armory Model Number 5165490473 UPC 5165490473 PRODUCT DETAILS DETAILS PSA 18" RIFLE-LENGTH .223 WYLDE 1/7 STAINLESS STEEL 15" LIGHTWEIGHT M-LOK UPPER WITH MBUS SIGHT SET & NIB BCG Barrel Length: 18" Gas System: Rifle-length Barrel Profile: A2 Style Barrel Steel: 416R Stainless Steel Barrel Finish: Stainless 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 Muzzle Device: A2 Flash Hider Receiver Material: Forged 7075 T6

MPN#: APAR712702M2 This complete upper receiver features the same tried-and-true construction and aesthetics as our M4E1 Threaded Upper Receivers, without provisions for a forward assist. The included ATLAS R-ONE Handguard is designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Description The M4E1 Complete Lower Receiver is the perfect base for your custom AR15 build. This complete lower features our new M4E1 Lower Receiver with an A2 Grip. Save when you buy it complete and let our specialists do the installation for you! Includes: - M4E1 Stripped Lower Receiver – Magpul™ FDE Cerakote - A2 Grip – Black - Mil-spec Lower Parts Kit - AR15 Carbine Receiver Extension - AR15 Carbine Buffer and Spring - These parts are installed This complete lower does not include a stock. Save on your initial purchase and choose any stock you prefer. Specifications:

AR-15 300 AAC BLK 10.5" Nitro-Met Quad Upper Assembly with Socom Style Brake - is a perfect addition to your AR-15 build. All you need is a case of ammo to change your standard AR 5.56 to a new 300 Blackout upper. ASSEMBLY FEATURES: CHAMBER - 300 AAC BARREL TWIST - 1X8 BARREL THREAD - 5/8 X 24 BARREL STEEL - 4150 CHROME MOLY WITH NITRO-MET COATING, CNC MACHINED, M4 FEEDRAMPS MUZZLE BRAKE - AR-15 GEN 2 MICRO REVERSE THREAD SLIP OVER SOCOM STYLE FAKE SUPPRESSOR HANDGUARD - MIDLENGTH HARDCOAT ANODIZED QUADRAIL FREE FLOAT

If you're looking around for a great deal for the Brigade Manufacturing AR Complete 10.5 inch 5.56 Upper Receiver Forged w/ Handle and A2 Flash Hider, then you've come to the right spot. These AR15 Upper Receivers from the skilled product experts at Brigade Manufacturing are fashioned using heavy duty and reliable materials, to be able to provide you with product that is going to be powerful for countless years.

Davidson Defense "Minik" AR-15 Pistol Featuring Aero Precision Upper 9MM 7" 4150 CMV Nitride 1:10T 7" M-Lok Davidson Defense Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

Davidson Defense "Minik" AR-15 Pistol Featuring Aero Precision Upper 9MM 7" 4150 CMV Nitride 1:10T 7" M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

Davidson Defense "Hamak" AR-15 Pistol Featuring Aero Precision Upper 9MM 7" 4150 CMV Nitride 1:10T 7 M-Lok Gauntlet Arms Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

UPPER RECEIVER: AR-15/AR-40 Mil-Spec Billet Aluminum, Type III Hardcoat Anodized Black with ejection port sized specifically for Pistol Calibers. BARREL: 10.5 inch, 40 S&W Caliber, 4150 Chrome Moly Vanadium Steel, 1:16 Twist, Nitride/Melonite Treated - made for us by Tactical Kinetics HANDGUARD: 9 inch M-LOK Free Floated, Machined out of 6061 T6 Aluminum – made for us by Axis MFG GAS SYSTEM: Blowback System GAS BLOCK: Blowback System - No Gas Block Needed MUZZLE DEVICE: Standard 9/16-24 A2 Flash Hider and Crush Washer 100% MADE IN THE USA LIFETIME WARRANTY AND SUPPORT*

Davidson Defense "Jarom" AR-15 Pistol Featuring Upper .300 Blackout 8.5" 4150 CMV Nitride 1:7T 7" M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: .300 AAC Blackout / 7.62x35mm

Description The AR-15 Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil- spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR-15 lower receivers for a solid and dependable fit. Features: - M4 Feedramps - .250 takedown pin holes - Port door and forward assist installed Includes: - AR-15 Assembled Upper Receiver in OD Cerakote H-232Q - MADE IN AMERICA Yes PLATFORM AR-15

The AR-15 Assembled Upper Receiver comes with the port door already installed. This specific model does not have forward assist provisions. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR-15 lower receivers for a solid and dependable fit. Note: The no-forward assist upper receivers use a custom forging designed to work specifically with mil-spec port doors. It may not work with aftermarket port doors. Features: M4 Feedramps .250 takedown pin holes

The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Davidson Defense "Ikelos" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" 4150 CMV Nitride 1:8T Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Vanguard" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" 4150 CMV Nitride 1:8T 15" M-Lok Davidson Defense Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

SKU 5165491813 Brand Palmetto State Armory Model Number 5165491813 UPC 5165491813 DETAILS PSA 10.5" CHF CARBINE LENGTH 5.56 NATO 1:7 9'' LIGHTWEIGHT M-LOK RAILED UPPER - WITHOUT BCG OR CH Barrel Length: 10.5" Gas System: Carbine Length Barrel Profile: A2 Style Barrel Steel: Cold Hammer Forged Chrome Moly Vanadium Barrel Finish: Phosphate Chrome Lining: Yes, bore and chamber Muzzle Thread: 1/2-28 Chamber: 5.56 NATO Twist Rate: 1:7 Barrel Extension: M4 Diameter at Gas Block: .750 Gas Block Type: .750 Low Profile Muzzle Device: A2 Flash Hider

This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. Specifications for Aero Precision M4E1 Enhanced .223 Wylde SS Quantum Handguard Complete Upper Receiver: Fabric/Material: Stainless Steel Caliber: .223 Wylde Barrel Twist Rate: 1-8 Gun Rail: M-LOK Gun Model: AR-15 29D-URC-M4E1E22318WQ-APAR640105M9 UPC#: 840014603862

AR15 Stripped Upper Receiver No Forward Assist, In the White (C) Specifications for Aero Precision AR15 Stripped Upper Receiver, No Forward Assist: Color: Anodized Black Finish: Anodized Fabric/Material: 7075-T6 forged aluminum Caliber: 5.56x45mm NATO Gun Model: Ar-15 Weight: 6.5 oz

M5 Threaded Assembled Upper Receiver - FDE Cerakote Specifications for Aero Precision APAR308505A .308 UPPER FDE: Color: Flat Dark Earth Finish: Cerakote Caliber: .308 Winchester

This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Specifications for Aero Precision M4E1 Threaded 16in 5.56 M4 w/ ATLAS S-ONE Handguard Complete Upper Receiver: Caliber: 5.56x45mm NATO Barrel Length: 16 in

M5E1 Assembled Upper Receiver. Gen 2 Enhanced Handguard of choice. 18" 6.5 Creedmoor Stainless Steel Barrel. Low Profile Gas Block and Mid Length Gas Tube. Product comes assembled. Specifications for Aero Precision M5E1 18in 6.5 Creedmoor Complete Upper Receiver: Caliber: 6.5mm Creedmoor Barrel Length: 18 in Handguard Length: 15 in Gun Rail: M-LOK Muzzle Device: A2 Flash Hider Gun Model: M5 Barrel Material: 416R Stainless Steel 29D-UFH-M5E1CMLB-APAR308554M44 UPC#: 815421021875

This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. Specifications for Aero Precision M4E1 Enhanced 16in 5.56 M4 CMV Carbine Barrel Quantum Handguard Complete Upper Receiver: Caliber: 5.56x45mm NATO Barrel Length: 16 in Barrel Twist Rate: 1-7 Gun Rail: M-LOK Gun Model: AR-15 29D-URC-M4E1-APAR640104M6 UPC#: 840014603572

The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Specifications for Aero Precision M4E1 Threaded 16in 5.56 M4 w/ ATLAS S-ONE Handguard Complete Upper Receiver: Caliber: 5.56x45mm NATO Barrel Length: 16 in

Finish your rifle build with this high-quality Aero Precision M4E1 Threaded 5.56 Mid-Length w/ ATLAS S-ONE Handguard Complete Upper Receiver. Aero Precision designed these AR15 Upper Receivers with QD sling sockets at the 3, 6 and 9 o'clock positions for simple sling attachment that creates a more comfortable carrying experience. This Aero Precision M4E1 Threaded 5.56 NATO w/ ATLAS S-ONE Handguard Complete Upper Receiver is outfitted with both a front and rear Picatinny rail for that attachment of scopes, lasers and other accessories.

Aero Precision M4E1 Complete Upper, 16in 5.56 M4 Carbine Barrel. Anti-Rotation Tabs. Feed Ramp Extension. Scalloped Rails. Continuous Top Rail. Specifications for Aero Precision M4E1 16in 5.56mm M4 Carbine Barrel Complete Upper Receiver: Caliber: 5.56x45mm NATO Barrel Length: 16 in Gun Rail: M-LOK Gun Model: AR-15 29D-URC-M4E1CMCB-APAR640252M6 UPC#: 815421021448

This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Specifications for Aero Precision M4E1 Threaded .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver: Caliber: .223 Wylde Barrel Twist Rate: 1-8 Gun Rail: M-LOK

This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Specifications for Aero Precision M4E1 Threaded .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver: Caliber: .223 Wylde Barrel Twist Rate: 1-8 Gun Rail: M-LOK

This Complete Upper includes Aero Precision's Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. Specifications for Aero Precision M4E1 5.56 Enhanced Complete Upper Receiver: Caliber: 5.56x45mm NATO Barrel Twist Rate: 1-7 Handguard Length: 15 in Gun Rail: M-LOK Gun Model: AR-15 29D-URC-M4E1E55618RLQ-APAR640115M8 Aero Precision Complete Upper Receiver, M4E1-E, 18in, 5.56 Rifle Barrel, Quantum 15in M-LOK Handguard, Flat Dark Earth, APAR640115M8

This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. Specifications for Aero Precision M4E1 Enhanced 16in 5.56 Mid-Length Barrel Quantum Handguard Complete Upper Receiver: Caliber: 5.56x45mm NATO Barrel Length: 16 in Barrel Twist Rate: 1-7 Gun Rail: M-LOK Gun Model: AR-15 29D-URC-M4EH-APAR640105M7

This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Specifications for Aero Precision M4E1 Threaded .223 Wylde w/ ATLAS S-ONE Handguard Complete Upper Receiver: Caliber: .223 Wylde Barrel Twist Rate: 1-8 Gun Rail: M-LOK

Aero Precision M4E1 .300 BLK Complete Uppers are equipped with CMV medium profile barrels. Along with excellent fit and finish, these AR15 Upper Receivers from Aero Precision come with Gen 2 Enhanced free-float handguards with Picatinny top rail and your choice of rail types on the other 3 faces. These solid Aero Precision M4E1 Complete Uppers are compatible with standard AR15/M4 components and have been MPI and HP tested. Get more power and accuracy when you upgrade to one of these Aero Precision M4E1 .300 Blackout Complete Upper Assemblies.

SKU APAR700315M42 This complete upper includes our new ATLAS S-ONE Handguard! The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Includes: M4E1 Threaded Assembled Upper Receiver ATLAS S-ONE Handguard of choice 18" .223 Wylde Rifle Length Stainless Steel Barrel

Davidson Defense "Night Hawk" AR-15 Pistol Featuring Davidson Defense Upper 9mm 4.5" 4150 CMV Nitride 1:10T 4 M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

If you're browsing for an amazing bargain for the Grid Defense 7.62x39 Upper Receiver, then you've found yourself in the ideal place.These AR15 Upper Receivers through the expert product experts at Grid Defense are made working with heavy duty and dependable materials, as a way to provide you with product which is going to be beneficial for a long time.