Aero Precision's EPC-9 9MM Assembled Upper Threaded 8.3'' BBL 7.3'' Handguard is engineered with precision and quality. This upper receiver is crafted from custom forged 7075-T6 aluminum, offering a robust and reliable platform for your AR-15. The...

The Aero Precision EPC-9 9MM Assembled Upper Threaded 5.5'' BBL 4.8'' Handguard showcases exceptional engineering and design quality. This complete upper receiver is crafted for seamless installation and optimal performance, featuring a robust anodiz…

Aero Precision's M4E1 350 Legend Assembled Upper M4 20'' Carbine Threaded FDE is engineered for precision and reliability. Crafted with a Cerakote finish and aircraft aluminum, it features a 20-inch barrel with a 1/16 twist rate, ensuring optimal...

The Aero Precision M5 Complete Upper 16" .308 Mid is a testament to Aero Precision's commitment to quality engineering and design. This upper receiver is crafted with precision, featuring a 16-inch barrel and a mid-length gas system, ensuring reliabl…

The CMMG Banshee Mk4 AR-15 Upper Group in .338 ARC combines the renowned AR15 platform with the power of a large bore caliber. This upper group is engineered for versatility, offering more energy on target and less gas system tuning when switching fr…

The Aero Precision M4E1 Assembled Gen 2 Upper Receiver 7.5" Pistol Length is a testament to precision engineering and high-quality design. Crafted from 7075 T6 aluminum, it features a hard coat anodized finish for durability. The M4E1's enhanced...

Introducing the CMMG Dissent MK4, a marvel of engineering and design. This upper receiver is crafted with precision, featuring CMMG's patent pending Compact Action and Radial Delayed Blowback technology. The forward non-reciprocating side charger all…

The Aero Precision EPC-9-T Upper 9MM 16" BLK is a testament to Aero Precision's commitment to quality and engineering excellence. This complete upper receiver features a 16" barrel with a 1:10 twist rate, ensuring optimal performance and accuracy. Th…

Aero Precision's M4E1-T Upper 5.56 16" FDE is a testament to superior engineering and design. This complete upper receiver is crafted for AR-15 platforms, featuring a 16-inch barrel with a 1:7 twist, ensuring precise accuracy and reliability. The Fla…

Aero Precision's M4E1 5.56 NATO Assembled Upper Receiver is a testament to precision engineering and design excellence. Featuring a 16'' barrel with a mid-length gas system, this upper receiver is crafted from 7075 T6 aluminum and finished with a har…

Aero Precision's M5E1 6.5 CM Assembled Upper Hvy 22'' Rifle Threaded Black is a testament to precision engineering and quality design. Featuring a 22'' stainless steel barrel with a 1-8" twist, this upper receiver is perfect for long-range target...

The CMMG Banshee Mk4 Upper Group in 5.56x45mm is a testament to CMMG's engineering prowess, offering a compact and lightweight design perfect for building an ultra-compact AR15. With a 10.5-inch barrel and direct impingement operating system, this up…