2237 results for 'upper build kits'

16" 400 Legend Medium Carbine M-LOK Upper Assembly The perfect balance of power, performance, and recoil. The 16" 400 Legend M-LOK Upper Assembly is engineered for hunters and shooters who demand...

Midwest Industries 10.5" AR 15 Pistol Upper This Midwest Industries 10.5" AR 15 Pistol Upper features an M-LOK compatible handguard, M4 feedramps, Melonite finished barrel and Hard Coat Anodizing...

Dirty Bird 10.5″ 5.56 M-LOK AR 15 Complete Upper This Dirty Bird Industries Complete Upper features a Black Nitride 10.5” Government Profile barrel chambered in 5.56 with a 1:7 twist...

Aero Precision M4E1 MOE Lower Parts Kit Minus FCG Ready to build out a lower, but wanting to minimize spare parts that might tempt you into yet another build? The Aero Precision M4E1 lower parts kit...

16" 5.56 Phosphate Midlength M-LOK Lightweight Upper Assembly Crafted for shooters who refuse to compromise on quality, the 16" 5.56 Phosphate Midlength M-LOK Lightweight Upper Assembly delivers...

Ambidextrous Side Charging Flat Top AR 15 Upper Receiver The Bear Creek Arsenal Ambidextrous Side Charging Flat Top AR 15 Upper Receiver is manufactured from 7075 aluminium and comes with...

AERO Precision 16" AR 15 Upper W/A2 Front Sight - FDE The AERO Precision 16" AR 15 Upper W/A2 Front Sight in Flat Dark Earth is a reliable and high-quality upgrade for your AR15 rifle...

20" 5.56 Gov / SOCOM M-LOK Upper Assembly This is a high quality 20 inch upper assembly that works as good as it looks. it is built using a top tier mil-spec forged upper receiver, a 5.56 Mil-Spec...

Foxtrot Mike 9" .223 Wylde Lightweight Pistol M-LOK Complete Upper The Foxtrot Mike Products FM-15 Gen 2 Side Charging AR-15 Upper Receiver features a unique dual spring recoil system nested in the...

11.5" Slick Side Billet 5.56 Nitride Pistol M-LOK Upper Assembly An affordable pistol upper assembly without cutting corners. This means using a nitrided steel gas block from an American...

Wilson Combat Forged AR 15 Stripped Upper Receiver Experience unmatched durability and precision with the Wilson Combat Forged Anodized AR-15 Upper Receiver. This receiver, crafted meticulously from...

Sharps Bros. SBUR04 Billet Upper Receiver This Sharps Bros. receiver is meant for .223, 5.56, .224 Valkyrie, 300 BLK and 6.5 Grendel calibers.  Port opening is not large enough for 450...

Daniel Defense MK18 Black 5.56 NATO 10.3" Short Barrel Upper Receiver Group The MK18 AR15 style Upper Receiver Group is unmatched in size, weight, and performance, and features the picatinny quad...

Faxon Firearms Forged AR 15 Upper Receiver - Enhanced Faxon was never content to settle on mil-spec, so they manufactured enhancements directly into the receiver. The Enhanced Faxon Firearms...

16" 5.56 Phosphate Midlength M-LOK Lightweight Complete Upper The 16" 5.56 Phosphate Midlength M-LOK Lightweight Complete Upper offers unmatched reliability, accuracy, and affordability. Featuring a...

Radical Firearms 16" 5.56 NATO Complete Upper Assembly 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...

Aero Precision AR-15 XL Assembled Upper Receiver - Anodized Black The Aero Precision XL Upper is forged from 7075-T6 aluminum and features an enlarged ejection port, the XL Upper Receiver is your...

Trinity Force AR-15 Upper Vice Block Use this reinforced polymer AR-15 Upper Vice Block from Trinity Force to secure your upper receiver to a bench vice when working on parts like the barrel and...

  Strike Industries AR 15 Lower Receiver Builders Pin Kit The Strike Industries pin kit is a valuable addition to your spare/replacement AR 15 parts inventory. This kit is comprised of several...

Rubber City Armory .308 Bolt Rebuild Kit The Rubber City Armory .308 Win Bolt Rebuild Kit is a full rebuild your bolt kit for when things go wrong. This specific kit is designed for .308 bolts only...

M4E1 Threaded Complete Upper, 14.5" 5.56 Mid-Length Barrel w/ Pinned Epsilon 556SL, 12" M-LOK ATLAS R-ONE HG - Anodized Black This complete upper includes the ATLAS R-ONE Handguard! The R-ONE...

AR 15 Upper Receiver (Blem) Each AR 15 Upper Receiver Blem has a small cosmetic blemish that didn't make it past Black Rifle Depot quality control. These AR 15 Upper Receivers are in perfectly...

New Frontier Pistol Caliber AR-9/45 Side Charging Upper Features: Multi (Designed for pistol caliber AR rounds) Accepts all Glock pistol caliber magazines Non Reciprocating Side...

Stripped AR 15 Upper Receiver With T-Marks Black Rifle Depot's Stripped AR 15 Upper Receiver is built to MIL-SPEC. Crafted from a 7075-T6 aluminum forging and machined with M4 feed ramps. Forge...

Aero Precision A3 Flattop Assembled Left-Handed Upper Receiver The AR15 Left-handed Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6...

Aero Precision M5 (.308) Assembled Upper Receiver - OD Green The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6...

Centurion Arms AR-15 CM4 Forged 5.56 Stripped Thermal Fit Upper Receiver Centurion Arms forged upper receivers are a great complement to their forged lower receivers.  The thermal fit inner...

18" .223 Wylde Spiral Fluted 1:8 Fortis Night Rail Upper Assembly Precision and Versatility with Premium Features The 18" .223 Wylde Spiral Fluted 1:8 Fortis Night Rail Upper Assembly offers a...

Daniel Defense M4A1 RIII 5.56mm NATO Black Upper Receiver Group The DD4 RIII URG is built for durability and performance. It includes a Black RIS III 12.5-inch M-LOK rail, allowing for a variety of...

Odin Works AR 15 Billet Upper Receiver The Odin Works AR 15 Billet Upper Receiver is a premium component designed to deliver exceptional performance in terms of accuracy, perfection, and reliability...

18" Midlength 22 ARC Medium Stainless M-LOK Upper Assembly Precision-crafted to unlock the full potential of 22 ARC. The 18" 22 ARC M-LOK Upper Assembly is built for shooters seeking cutting-edge...

Geissele Automatics Duty AR-15 Complete Upper Receiver Mid-length - OD Green - 16" The Geissele Super Duty Upper (Complete) features the latest in weapon technology available exclusively from...

Foxtrot Mike Products MIKE-9 VFM-9 Dual Charging Handle 9mm AR-15 Complete Upper Receiver - 5.2" The Foxtrot Mike Products MIKE-9 VFM-9 Dual Charging Handle 9mm AR-15 Complete Upper Receiver combines...

Daniel Defense 14.5" 5.56 M4A1 Carbine 1:7 AR-15 Complete Upper - FDE The Daniel Defense 14.5" M4A1 Complete Upper is the same complete upper receiver assembly used on their M4A1 rifle. Using top...

Aero Precision AR-15 Enhanced Pistol Buffer Kit AR-15/M4 Enhanced Pistol Buffer Kit. Includes Enhanced 7075-T6 Aluminum Pistol Buffer Tube Carbine buffer Buffer spring End plate and lock...

Radical Firearms 16" 300 Black Out Complete Upper Assembly The Radical Firearms 16" 300 Blackout Complete Upper Assembly is a comprehensive solution that effortlessly fits any MIL-STD lower receiver...

Aero Precision AR-15 10.5" 5.56 Carbine Complete Upper w/ Pinned FSB, MOE Carbine – Black Get started on your new AR pistol build with this Aero Precision Barreled Upper Receiver. It features a...

AERO Precision AR 15 Stripped Upper Receiver with No Forward Assist The AERO Precision AR 15 Stripped Upper Receiver is one of Areo Precision's most popular products. Forged from 7075-T6 aluminum,...

LUTH-AR Stripped NC15 Forged .308 Upper Receiver The Luth name is synonymous with Experience, Expertise, Knowledge, Innovation, and has been a driving force in the firearm industry for close to 40...

Foxtrot Mike Products 5" Rear Charging 9mm AR-15 Complete Upper The Foxtrot Mike Products Complete 9mm AR-15 upper is the package you have been waiting for to finish your Glock mag AR-9 build. This...