Aero Precision's EPC-9 9MM/40 S&W Assembled Upper Receiver with LRBHO Black is engineered with precision and durability in mind. Crafted from custom forged 7075-T6 aluminum, it features a last round bolt hold open mechanism and compatibility with Aer…

Aero Precision presents the 5.56x45 NATO Assembled Upper Receiver for AR-15 in Kodiak Brown, a testament to precision engineering and robust design. Crafted from 7075-T6 forged aluminum, this upper receiver is machined to mil-spec M16/M4 specificatio…

The CMMG ENDEAVOR MK3 UPPER GROUP 308WIN 20 BLK is a testament to precision engineering and design excellence. Built on the LR-308/DPMS Gen 1 High-Pattern platform, this upper group offers a direct impingement operating system, ensuring reliable...

Aero Precision's M4E1-T 6.5 Grendel Assembled Upper SPR 18'' BBL Rifle Threaded FDE is a testament to superior engineering and design. Featuring a billet-look enhanced forging, M4 feedramps, and a full top Picatinny rail, this upper receiver is craft…

Aero Precision's 5.56MM Assembled Upper Receiver for AR-15 is a testament to precision engineering and quality design. This upper receiver is crafted from 7075-T6 aluminum, ensuring durability and reliability. It features an anodized black finish,...

The CMMG RESOLUTE MK4 Upper Group in .350 Legend is a testament to CMMG's commitment to quality and innovation. Designed for the AR15 platform, this upper group features a 16.1-inch barrel with a direct impingement operating system, ensuring reliable…

Aero Precision's M4E1 5.56 Assembled Upper Receiver with the ATLAS S-ONE Handguard is a testament to superior design and engineering. Featuring a lightweight build with a slim profile, this upper receiver includes an 11.5" carbine barrel made from...

The CMMG RESOLUTE MK4 UPPER GROUP 300BLK 16.1 BLK is a testament to superior engineering and design. Crafted for versatility, this upper group is perfect for completing your next carbine build. It features a 16.1-inch barrel with a 1:7 twist, made fr…

Aero Precision presents the M4E1 5.56 Assembled Upper with an 11.5'' barrel, designed for precision and reliability. This upper receiver features a government profile barrel, carbine-length gas system, and an anodized black finish, ensuring durabilit…

Aero Precision's M4E1 5.56 Assembled Upper Receiver Threaded with AR15 Semi-Cut Black showcases a new angular machined design, setting it apart from standard mil-spec upper receivers. Crafted from 7075-T6 Aluminum, it is precision machined to work...

The AERO M4E1-T Complete Upper is a testament to Aero Precision's commitment to quality and innovation. This upper features an 18" .223 Wylde QPQ rifle length barrel, designed for precision and reliability. The ATLAS R-ONE handguard offers a sleek de…

The CMMG DISSENT Upper Group 9mm 10.5 BLK is a testament to innovative design and engineering excellence. Featuring a 10.5-inch barrel, this upper group utilizes CMMG's patent-pending Compact Action and Radial Delayed Blowback technology, housing the…