Aero Precision's M4E1 5.56mm 10.5" Carbine Upper Receiver is a testament to precision engineering and design excellence. Crafted from 7075 T6 aluminum, this upper receiver features a 10.5" barrel made from 4150 chrome-moly-vanadium steel, ensuring...

Aero Precision's M4E1 Threaded Assembled Upper Receiver showcases a new angular machined design, crafted from 7075-T6 aluminum for durability and precision. This upper receiver integrates seamlessly with Enhanced and ATLAS Series Handguards, featurin…

Aero Precision's M5E1 Enhanced .308 Winchester Assembled Upper Receiver ODG showcases superior engineering with a one-piece design that integrates the handguard mounting platform into the upper itself. This innovative construction reduces the number …

Aero Precision's M4E1 Stripped Upper Receiver is a testament to superior engineering and design. Crafted from 7075-T6 Aluminum, it features a unique angular machined design that sets it apart from standard mil-spec receivers. This upper receiver is..…

Aero Precision's M4E1 5.56 NATO Assembled Upper Receiver combines precision engineering with a sleek design. Featuring a 14.5'' mid-length barrel, this upper receiver is crafted from forged 7075 T6 aluminum with a hardcoat anodized finish, ensuring..…

Aero Precision's EPC-9 Assembled Upper in Flat Dark Earth is a testament to precision engineering and quality design. This upper receiver is crafted from anodized aluminum, ensuring durability and a sleek finish. It features a last round bolt hold op…

Aero Precision's M4E1 5.56MM Stripped Upper No Forward Assist for AR-15 is a testament to precision engineering and quality design. Crafted from custom 7075-T6 aluminum forgings, this upper receiver offers a billet look while maintaining the structur…

CMMG has revolutionized the PCC world with the 9mm DISSENT Upper Group, featuring the Radial Delayed Blowback Operating System. This innovative design integrates the action and recoil system into the upper receiver, eliminating the need for a traditi…

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 the entire action and recoil assembly within the up…

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 reliability, making it ideal for range time and trainin…

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 Compact Action design. Ideal for range time and training…

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 mil-spec M16/M4 specifications, ensuring a reliable and.…