CMMG presents the DISSENT MK4 Upper Group 5.56 16.1 BLK, a marvel of engineering designed for precision and versatility. This upper group features a direct impingement Compact Action system, housing...

Aero Precision's M4E1 Upper Receiver is precision machined from 7075 T6 aluminum, offering exceptional durability and performance. The 10.5" 5.56 NATO barrel is designed for optimal accuracy and...

Introducing the CMMG Dissent 28B940CCG, a marvel of modern firearm engineering. This model boasts a sleek design and advanced features, including a 16.10" barrel and a unique direct impingement...

Aero Precision's AR15 Assembled Upper Receiver in Anodized Black is a testament to precision engineering and design excellence. Crafted from 7075-T6 aluminum, this upper receiver is machined to...

The CMMG Dissent 9mm Luger is a marvel of modern firearm engineering, featuring a 10.50" barrel and a left side charging handle. Its Armor Black finish and Zeroed Linear Compensator make it both...

The Aero Precision M4E1 Threaded Upper Receiver FDE is a marvel of engineering, crafted with a new angular machined design that sets it apart from standard mil-spec upper receivers. Forged from...

Aero Precision's M4E1-T 6.5 Grendel Assembled Upper SPR 18''BBL Rifle Threaded Black showcases superior engineering with its enhanced forging for a billet look, M4 feed ramps, and laser engraved...

Aero Precision presents the AR-15 Assembled Upper Receiver, a masterpiece of engineering crafted from 7075-T6 aluminum. This model, designed without a forward assist, features precision machining to...

The CMMG DISSENT MK4 Upper Group 300BLK 16.1 BLK is engineered with precision and versatility in mind. Featuring a 16.1" barrel, this upper group maximizes performance with a variety of .30 Cal power...

Aero Precision presents the M4E1-T Complete Upper, a masterpiece of engineering with an 18" .223 Wylde QPQ Rifle Length Barrel and 16.6 ATLAS R-ONE FDE Cerakote. This upper receiver is designed for...

The CMMG 30BC40AMB Resolute MK4 is a testament to precision engineering and design excellence. This upper group, chambered in 300 Blackout, features a 16.10" barrel and a Midnight Bronze M-LOK...

The CMMG Banshee MK4 Upper Group 22LR 9 BLK is a testament to CMMG's dedication to quality engineering and design. This upper group is crafted for those looking to complete a .22 LR build or have a...