Upper Receivers

Colt's Manufacturing, SP401491, Upper, 223 Remington, 556NATO, 14.5" Barrel, Matte Black Finish, No BCG Included, Troy Quad Rail, Fixed Front Sight, MA Tech Rear Sight

High quality components and precise manufacturing makes Colt Products ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will provide years of service you can count on. Colt's Manufacturing,...

The M5 .308 Stripped Upper Receiver is the perfect upper for your big bore rifle build. Forged from 7075- T6 aluminum, this stripped upper is precision machined to accept standard .308 components. Match this with our M5 .308 lower receiver for a solid...

The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...

The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...

Aero Precision AR15 Atlas R-One M-LOK Handguard FDE  The ATLAS R-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the R-ONE line of handguards are designed with size and weight in mind,...

Aero Precision M4E1 Threaded Receiver Set - Anodized Black Built for durability and precision, this M4E1 set delivers a high-quality foundation for your AR-15 build. Featuring an M4E1 Lower Receiver and an M4E1 Threaded Assembled Upper Receiver, both...

Aero Precision AR15 Assembled Upper Receiver - Black Manufacturing a great receiver isn't just about what the end product looks like. It's about what it feels like, how it works, how it handles and performs. Aero Precision products have been...

Aero Precision AR15 Atlas R-One M-LOK Handguard ODG Anodized  The ATLAS R-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the R-ONE line of handguards are designed with size and weight in mind,...

Aero Precision AR15 Atlas R-One M-LOK Handguard Kodiak Brown  The ATLAS R-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the R-ONE line of handguards are designed with size and weight in mind,...

AR15 ASSEMBLED UPPER RECEIVER, NO FORWARD ASSIST - ANODIZED BLACK The AR15 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...

Aero Precision M5 16" .308 CMV Complete Upper Receiver with ATLAS R-ONE Handguard - OD Green Anodized Aero Precision APAR538772M22: The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to...