Upper

Aero Precision M5 Complete Upper, 308 Winchester, 16" Barrel, 1:10 Twist, Rifle Length Gas System, Atlas S-one Handguard, Cerakote Finish, Does Not Include Bcg Or Carry Handle Apar538715m22

Aero Precision Ar15 Complete Upper, 223 Remington/556nato, 16" Barrel, Magpul Moe Handguard, A2 Front Sight Block, Mid Length Gas System, Anodized Finish, Black, Does Not Include Bcg Or Carry Handle...

Bootleg Four Position Adjustable Carrier, Ar-15, Complete, Black Finish, Blem (damaged Packaging) Bp-c15-dProduct Type: Bolt CarrierDescription: Bolt Carrier Group

Bootleg Gas Tube, Silver, Mid Length Gas Tube Bp-gtm-sProduct Type: Gas TubeDescription: Mid Length Gas Tube

Battle Arms Development Workhorse, Upper Receiver Assembly, 223 Remington/556nato, 16" Barrel, Mid-length Gas System, Anodized Finish, Black, A2 Flash Hider, Workhorse 15" M-lok Free Float Handguard,...

Battle Arms Development Workhorse, Upper Receiver Assembly, 223 Remington/556nato, 10.5" Barrel, Carbine-length Gas System, Anodized Finish, Black, A2 Flash Hider, Workhorse 9.5" M-lok Free Float...

Battle Arms Development Xiphos Upper Receiver, Stripped, 9mm, Anodized Finish, Black, Billet 7075-t6 Aluminum Construction Bad-pcc-urModel: XIPHOS Upper ReceiverProduct Type: UpperFinish/Color:...

Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use...

Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use...

Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use...

Meet CMMGs newest long-range offering. Chambered in Hornadys new 6mm ARC (Advanced Rifle Cartridge), the CMMGs RESOLUTE upper receiver group allows you to pair this exciting caliber with your...

CMMGs RESOLUTE lineup is engineered with purpose for those who refuse to compromise on quality. Each RESOLUTE rifle comes with a 16-inch barrel and is designed for balance, accuracy and...

Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use...

Ballistic Advantage Ba10, Upper, Black, Ar-10, Anodized Bapa100091Model: BA10Product Type: UpperFinish/Color: AnodizedFit: AR-10

Ballistic Advantage Upper, Black, Ar-15, Anodized Bapa100084Product Type: UpperFinish/Color: AnodizedFit: AR-15

Ballistic Advantage Upper, Black, Ar-15, Anodized Bapa100049Product Type: UpperFinish/Color: AnodizedFit: AR-15

The Daniel Defense M4 V7 LW Upper Receiver Group is built around a Cold Hammer Forged 16" Lightweight profile barrel-which is two ounces less than a standard V7 barrel-and equipped with a DD improved...

The Daniel Defense M4 V7 Upper Receiver Group is built around a Cold Hammer Forged 16" Government profile barrel and equipped with a DD improved Flash Suppressor to reduce flash signature. It...

Black Rain Ordnance, Inc. is a precision rearms manufacturer specializing in the modern sporting rifle design. Founded in 2009 with a benchmark to only manufacture weapons we would personally be...

The Daniel Defense M4A1 Upper Receiver Group features the M4A1 Rail Interface System (RIS II), which has been in use by US Special Operations Command (SOCOM) for the SOPMOD II Weapons System since...

Black Rain Ordnance, Inc. is a precision rearms manufacturer specializing in the modern sporting rifle design. Founded in 2009 with a benchmark to only manufacture weapons we would personally be...

The durability, reliability and excellent build quality of Colt uppers will provide years of service you can count on.Features :M4 Feed RampsForward AssistUpper Receiver

Complete Bolt carrier group, Machined from S7 Tool Steel, Lithium Isonite Coating, 4 Setting Adjustable Vent System relieves excess gas pressure created from suppressor use, creating longer dwell...

When it comes time to replace your gas tube, or youre simply customizing your upper assembly, the gas tubes are an integral part of your upper receiver assembly, so its important to ensure youre...

Fine tune your ARs gas system with a Bootleg, Inc. Low Profile Gas Block! Regulate your ARs gas from the initial combustion back to the bolt carrier group, helping your rifle cycle quickly and...

The new Bootleg CamLok Handguards are the next evolution in lightweight, easy to install AR-15 handguards. These handguards are extruded 6061 Aluminum and feature a Mil-Spec Hard Coat Anodizing. The...

The Fortis Billet Upper is a precision piece, machined from Billet 7075 T6 aluminum. Like Fortis other products, they designed this upper with function as well as form in mind. Fortis shaved off...

The new Bootleg CamLok Handguards are the next evolution in lightweight, easy to install AR-15 handguards. These handguards are extruded 6061 Aluminum and feature a Mil-Spec Hard Coat Anodizing. The...