Uppers Gun Parts

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Once installed, the patented MCR upper receiver system can be user-configured in seconds without tools to adapt to virtually any mission profile. Specifically designed for responsible armed citizens, law enforcement and professional security personnel who wish to upgrade their rifle or carbine to MCR performance and capability; standard features include gas-piston operation for extreme reliability in adverse conditions; a 16.25" quick-change (3 seconds) barrel system and a MIL-STD 1913 co-planar hand-guard with rail-interface system for the mounting of optics and modern accessories.

Chamber - 300 Blackout Barrel Twist - 1x8 Barrel Thread - 5/8x24 Barrel Steel - Black Nitride Finish 4150 CMV Flash Hider - 4" Zombie Slayer Muzzle Brake Handguard - 7" Mlok Free Float, hardcoat anodized Gas Block - .750 Low Profile Gas Block, steel, hardcoat anodized; pistol gas system Upper Receiver - A3 Flat-Top Upper, assembled with forward assist and dust cover Bolt Carrier Group - Not Included Charging Handle - Not Included

Davidson Defense "Wroxxow" AR-15 Pistol Featuring Aero Precision Upper .223 Wylde 10.5" 4150 CMV Nitride 1:7T 10 M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "Trisect" AR-15 Pistol Featuring 5th Axis Inc Upper 9MM 7" 4150 CMV Nitride 1:10T 4" M-Lok Gauntlet Arms Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber:

Quick Overview free shipping Free Shipping applies to this item only and not the entire order. SKU: 5165449632 UPC: 5165449632 MFR#: 5165449632 Barrel Length: 16" Barrel Profile: A2 Style Barrel Steel: Chrome Moly Barrel Finish: NItride Chrome Lining: No Muzzle Thread: 1/2-36 Chamber: 9mm (9x19) "9MM 1:10 PSA PCC CHAMBER" Twist Rate: 1 in 10" Barrel Extension: 9mm Muzzle Device: A2 Bird Cage Flash Hider Receiver Material: Billet 6061 T6 Receiver Type: Slick Side Handguard Type: PSA 13.5" Lightweight M-Lok Free Float Rail BCG Included: Yes (Gen-4 Hybrid)

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

SKU 5165449132 Brand Palmetto State Armory Model Number 5165449132 UPC 5165449132 DETAILS - Barrel Length: 8.5" - Gas System: Pistol-length - Barrel Profile: Heavy - Barrel Steel: Chrome Moly - Barrel Finish: Phosphate - Chrome Lining: None - Muzzle Thread: 5/8-24" - Chamber: 300AAC Blackout - Twist Rate: 1 in 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: 7" Lightweight M-Lok Rail - Bolt Carrier Group Included: Yes

3rd Gen Tactical Complete Upper - Elite 16" - Includes BCG & Charging Handle, 15" MLOK Handguard, Dead Air Keymount Brake The 3rd Gen Tactical AR-15 Complete Upper Rifle Kit is a comprehensive package that provides all the necessary components to build a high-quality AR-15 rifle. This specific kit comes with a .223 16" pencil barrel, which is lightweight and designed for increased maneuverability and accuracy.

Once installed, the patented MCR upper receiver system can be user-configured in seconds without tools to adapt to virtually any mission profile. Specifically designed for responsible armed citizens, law enforcement and professional security personnel who wish to upgrade their rifle or carbine to MCR performance and capability; standard features include gas-piston operation for extreme reliability in adverse conditions; a 16.25" quick-change (3 seconds) barrel system and a MIL-STD 1913 co-planar hand-guard with rail-interface system for the mounting of optics and modern accessories.

Davidson Defense "TT 5.56" AR-15 Rifle Featuring Aero Precision Upper 5.56 NATO 16" 4150 CMV Nitride 1:7T 15" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "Wolfsbane" AR-15 Rifle Featuring Davidson Defense Upper .300 Blackout 16" 4150 CMV Nitride 1:8T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "Madago" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16.5" 4150 CMV Nitride 1:7T Complete Upper Build W/ .22 LR Conversion Kit (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Wolfsbane" AR-15 Rifle Featuring Davidson Defense Upper .300 Blackout 16" 4150 CMV Nitride 1:8T 15" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

SKU 51655134677 Brand Palmetto State Armory Model Number 51655134677 UPC 51655134677 DETAILS Barrel Length: 16" Gas System: Mid-Length Barrel Profile: A2 Style Barrel Steel: 4150V Barrel Finish: Nitride Black 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 Hand Guard Type: NEW PSA 15" M-Lok Lightweight Rail Bolt Carrier Group Included: Yes Bolt Steel: Carpenter 158

Matador Arms "Montgo-9 Tanker (With Iron Sights)" 5.5" AR-15 Pistol Featuring Matador Arms Upper Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

Matador Arms "Montgo-9 Micro Comp (With Iron Sights)" 5.5" AR-15 Pistol Featuring Matador Arms Upper Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

Matador Arms "Montgo-9 Mil-Spec (With Iron Sights)" 5.5" AR-15 Pistol Featuring Matador Arms Upper Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

AR15 Assembled Upper Receiver, No Forward Assist - Anodized (C) Specifications for Aero Precision AR15 Assembled Upper Receiver, No Forward Assist: Fabric/Material: 7075-T6 forged aluminum Caliber: 5.56x45mm NATO Gun Make: AR Platform Gun Model: M16, AR-15 Gun Type: Rifle Weight: 6.5 oz 29D-UPR-AR15AURNFA-APAR610411AC UPC#: 815421022407

Details Barrel Length: 10.5" Barrel Profile: A2 Gas System: Carbine-Length Barrel Steel: 4150 Chrome Moly Vanadium Barrel Finish: Phosphate 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 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 Charging Handle Included: Yes

Davidson Defense "Twilight Terror" AR-15 Rifle Featuring Aero Precision Upper .300 Blackout 16" 4150 CMV Nitride 1:8T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber:

The AR15 Stripped Upper Receiver is one of our most popular products. Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil-spec M16/M4 specifications. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. Specifications for Aero Precision AR15 Stripped Upper Receiver - XL: Color: FDE Finish: FDE Cerakote Fabric/Material: 7075-T6 forged aluminum Caliber: 5.56x45mm NATO Gun Model: AR-15 Weight: 8.35 oz

Davidson Defense "Poseidon's Breath" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 7.5" 4150 CMV Manganese Phosphate 1:7T 7" M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "Last Stand" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 10.5" 4150 CMV Nitride 1:7T 10" M-Lok Davidson Defense Freefloat Handguard Full Build Kit (Assembled or Unassembled) Caliber: - Caliber:

Barrel Steel: 16" 4150V Chrome Moly Vanadium Barrel Finish: Nitride Muzzle Thread: 1/2X28 Chamber: 5.56 NATO (shoots both, 5.56 NATO and .223 Rem) Twist Rate: 1 in 8" Barrel Extension: M4 Diameter at Gas Block: .750" Gas Block Type: Low-profile steel Muzzle Device: Barrett style muzzle brake Receiver Material: Forged 7075 T6 Receiver Type: M4 Hand guard Type: MA 15" Lightweight Mlok Rail Bolt Carrier Group Included: No Charging Handle included: No Overall Length: 24.5" Weight as configured: 3.7 lbs

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:M5 Assembled Upper ReceiverATLAS S-ONE Handguard of choice24in 6.5 Creedmoor SS Barrel, Rifle LengthLow Profile Gas Block and Rifle Length Gas TubeProduct comes assembledThis complete upper does not include a BCG or Charging Handle.

Description The M4E1 Threaded Upper Receiver features a new angular machined design that helps it’stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR-15 barrel nut. It is forged from 7075-T6 Aluminum and precision machined to work with all mil-spec AR-15 parts. The M4E1 Threaded Upper Receiver is designed to pair perfectly with our new M4E1 Lower Receiver, giving you a billet looking receiver set at a fraction of the billet price. Features:

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.

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.

Davidson Defense "Poseidon's Breath" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 7.5" 4150 CMV Manganese Phosphate 1:7T 7" M-Lok Davidson Defense Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber:

SKU 51655160177B Brand Palmetto State Armory Model Number 51655160177B UPC 51655160177B DETAILS Blemished AR-15 Complete Flat Top Upper Receiver M4 Feed Ramps Forged 7075 T6 Aluminum Mil-Spec Anodized Finish Ejection Port Cover Installed Forward Assist Installed **These upper receivers may have cosmetic blemishes that do not affect function. This may include but is not limited to, forging marks under the finish, scratches, and slight variations in the finish color coat. FEATURES

Quick Overview 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: 516447012 UPC: 516447012 MFR#: 516447012 - 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

Davidson Defense "The Ancient Throne" AR-15 Pistol Featuring Davidson Defense Upper 9MM 7" 4150 CMV Nitride 1:10T 7" M-Lok Davidson Defense Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "Event Horizon" AR-15 Pistol Featuring Davidson Defense Upper 10MM 8.5" 4150 CMV Nitride 1:16T 7" M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: There is still an enthusiastic group of supporters and users, and as of 2007, in recent years 10mm Auto has started to grow again in popularity. Now available and ready to use in the familiar AR-15 platform. Barrel: - Barrel:

The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from Geissele Automatics. This 16” complete upper chambered in 5.56mm features a Nanoweapon coated Surefire Closed-Tine Flash Hider mounted to an 16” durable black oxide coated, CHF, Chrome Lined 1-7 twist barrel. Our barrels are precision machined and cold hammer forged utilizing the highest quality materials at our state of the art facility in North Wales, PA.

Davidson Defense "The Combustor" AR-15 Pistol Featuring Davidson Defense Upper .223 Wylde 10.5" 4150 CMV Nitride 1:8T 10" M-Lok Davidson Defense Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "Fourth Moon" AR-15 Pistol Featuring Davidson Defense Upper 9MM 4.5" 4150 CMV Nitride 1:10T 4" M-Lok Gauntlet Arms Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "The Combustor" AR-15 Pistol Featuring Davidson Defense Upper .223 Wylde 10.5" 4150 CMV Nitride 1:8T 10" M-Lok Davidson Defense Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

Builder's Grade Complete 16" 9mm Upper Receiver | A2 | 15" M-LOK Handguard | Pistol Caliber | Black | With Bolt Carrier Group and Charging Handle This Complete 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.

Davidson Defense "Mule Train" LR-308 Rifle Featuring Davidson Defense Upper 6.5 Creedmoor 20" 4150 CMV 1:8T 15 KeyMod Presma Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 6.5 Creedmoor / 6.5x48mm

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

Davidson Defense "Concussive Whisper" AR-15 Pistol Featuring Davidson Defense Upper 7.62x39mm 7.5" 4150 CMV Nitride 1:10T 7" M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "The Immortal Night" AR-15 Pistol Featuring Davidson Defense Upper 7.62x39mm 7.5" 4150 CMV Nitride 1:10T 7 M-Lok Gauntlet Arms Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

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: 13.7 inch, 5.56 NATO Caliber, 4150 Chrome Moly Vanadium Steel, 1:7 Twist, Medium Profile, Nitride/Melonite Treated - made by Ballistic Advantage HANDGUARD: 15 inch M-LOK Free Floated, Machined out of 6061 T6 Aluminum – made for us by Bowden Tactical GAS SYSTEM: Mid Length, Direct Impingement, Stainless Steel Tube GAS BLOCK: Low Profile Gas Block, Machined out of 4140 Steel

Product #: 334918 Manufacturer #: 452-1010-003 UPC #: 811163038744

Product #: 486710 Manufacturer #: 452-1010-002 UPC #: 811163038737

Product #: 962619 Manufacturer #: 451-1010-008 UPC #: 811163039147

The Evolve Weapons Systems AR-15 Barreled Upper Receiver chambered in 5.56 NATO is a great starting point for your next duty rifle build. EWS firearms are built with high quality components and materials like a forged 7075-T6 aluminum upper and a 416R stainless steel barrel with a Nitride finish. The 12.5 inch barrel also features a patrol-length gas system and a 1:7 twist rate and an A2 style flash hider. The free float handguard features an M-LOK handguard with grip texturing machined in. Features: 12.5" 5.56 Barrel Nitride finish Patrol-length gas system 1:7 Twist rate

Davidson Defense "Retro Thruster" AR-15 Rifle Featuring Davidson Defense Upper 7.62x39mm 16" 4150 CMV Nitride 1:10T 15" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

080-001-400WB BRN-180S 300BLK UPPER W/SPARC SOLAR RED DOT Cartridge: 300 AAC Blackout Finish: Anodized Style: Complete Color: Black Length: 10" Muzzle: 5/8-24, ... click details to view more....

Barreled 16" 5.56 Carbine Upper Receiver | A2 | 15" M-LOK - Sniper Grey NO BCG OR CHARGING HANDLE INCLUDED 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: Length - 16" Material - 4150 Chrome Moly Vanadium Finish - Parkerized Profile - M4 Contour Gas System Length - Carbine Length Gas Block Journal - .750" Twist Rate - 1:7 inches Muzzle - 1/2x28 Threaded Weight - 2.5 Pounds Other Info - M4 Feed Ramps Upper Receiver:

430-103-690WB AR15 14.5" M4 UPPER RECEIVER 1-9 Mfr Part: BA-F14 Starts with Luth-AR’s 14.5″ M4 Government Profile with F Marked Front Sight Base, 5.56mm barrel made from 4150 CMV with a 1-9″ twist paired to their A3 Flattop receiver which includes the Luth-AR bolt carrier, charging handle, forward assist and ejection port cover. Upper Specs: 7075-T6 Forging Hard coat anodize Black Bolt Specs: Bolt: Carpenter 158 steel Extractor: 4140 Alloy steel Army Spec Heat Treatment Manganese Phosphate Bolt Carrier Specs: Carrier: 8620 steel Cam pin: 4340 Alloy steel

This Complete 7.5 inch M-LOK upper receiver comes with a 7.25 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 and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean. Barrel: 7.25" 5.56 4150 CMV Barrel - Parkerized M4 Carbine Profile - .750" GB Journal 1:7 Twist Rate - 1/2x28 Muzzle Thread Fitted with A2 Flash Hider Bolt Carrier Group: Enhanced 9310 Steel (Bolt) 8620 Tool Steel (Carrier)

Davidson Defense "The Great Custer" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 7.5" 4150 CMV Nitride 1:7T 10" M-Lok 2A Armament Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Masta" LR-308 Rifle Featuring Davidson Defense Upper .308 WIN 16" 4150 CMV Nitride 1:10T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is a great option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits take the hassle out of building your custom firearm. Barrel: - Barrel:

Davidson Defense "Gravity Turn" LR-308 Rifle Featuring Aero Precision Upper .308 WIN 16" 4150 CMV Nitride 1:10T 15" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is a great option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits take the hassle out of building your custom firearm. Barrel: - Barrel:

Barreled 10.5" 5.56 Pistol Upper Receiver | A2 | 9" M-LOK - FDE NO BCG OR CHARGING HANDLE INCLUDEDClick here for Charging HandlesClick here for Bolt Carrier Groups This Barreled 10.5 inch M-LOK upper receiver comes with a 9 inch free-float handguard and is built with only the best Mil-Spec components.

Description The Mil Spec AM-15 stripped Upper Receiver is machined from 7075 T6 Aluminum forging. Featuring M4 feed ramps, this upper receiver is machined to Military Specifications & Standards and can be used with multiple calibers on the AR-15 platform. This upper receiver comes not finished in raw aluminum, ready for your coating of choice to make it completely custom! Match this Upper with one of our Lower Receivers for a solid fit. Features: - Mil Spec, Standard Specifications: - Material: 7075 T6 Aluminum Forging - Finish: Unfinished, White

Daniel Defense 23-004-13150 M4A1 FDE 5.56 NATO 14.5" Bbl Upper Receiver Group w/Pinned Ext. Flash Hider

Builder's Grade 5.5" 9mm Upper Receiver - Black | FLASH CAN | 7" M-LOK | Without Bolt Carrier Group and Charging Handle This 5.5 inch M-LOK upper receiver comes with a 7 inch free float handguard and is built with only the best Mil-Spec components.

This Complete 7.5 inch M-LOK upper receiver comes with a 9.25 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 and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean. Barrel: 7.25" 5.56 4150 CMV Barrel - Parkerized M4 Carbine Profile - .750" GB Journal 1:7 Twist Rate - 1/2x28 Muzzle Thread Fitted with Flash Can Bolt Carrier Group: Enhanced 9310 Steel (Bolt) 8620 Tool Steel (Carrier) Bolt is shot Peened and MPI