The Aero Precision M4E1 5.56 Assembled Upper is a testament to precision engineering and quality craftsmanship. Featuring a 16" 5.56 NATO barrel with a mid-length gas system, this upper receiver is designed for optimal performance and reliability. Th…

Aero Precision's AERO M5 COMPLETE UPPER 16 308 MID FDE is engineered with precision and durability in mind. Crafted from 7075-T6 aluminum, this upper features a 16" .308 CMV barrel with a mid-length gas system, ensuring reliable performance and ease …

The Sons of Liberty Gun Works SOLGW M4L89UPPER13.7556XL L89 Upper 556 13.7 V2 showcases exceptional engineering and design quality. This complete upper receiver features a 13.7" pinned (16.5" OAL) button-rifled barrel, HUXWRX flash hider, and a low..…

Sons of Liberty Gun Works presents the SOLGW L89 BS V2 5.56 13.7" NOX BLK, a masterpiece of engineering and design. Featuring 7-sided L89 rails with Titanium barrel nuts and integral QD cups, this upper receiver is crafted for precision and reliabili…

Aero Precision's M4E1 5.56 Assembled Upper Govt 18'' BBL Rifle Threaded Black showcases precision engineering and high-performance features. The 18-inch 5.56 NATO barrel and ATLAS R-ONE M-LOK handguard ensure exceptional accuracy and modularity, fini…

The CMMG Resolute MK4 5.56x45mm NATO is a testament to precision engineering and robust design. Featuring a 16.10" barrel and an Armor Black finish, this upper group is crafted for seamless integration with AR15 lower groups. Its M-LOK Free-Float...

The CMMG Resolute MK4 5.56x45mm NATO 16.10" Upper Group is designed with precision engineering and high-quality materials, offering a Midnight Bronze finish and M-LOK Free-Float Handguard for seamless integration with AR-platforms. Ideal for range ti…

The Aero Precision APAR308505AC Assembled Receiver is crafted with precision and durability in mind. Forged from 7075-T6 aluminum, this receiver is designed to accept standard .308 components, making it an ideal choice for your big bore build. It...

The Aero Precision M4E1 5.56 ASSEM UPPER GOVT 11.5'' BBL CARBINE THREADED FDE is a testament to precision engineering and robust design. Featuring an anodized finish in Flat Dark Earth, this upper receiver is crafted for the AR-15 platform, offering …

Introducing the Radian Weapons Complete Upper 9" .300 Blackout FDE, a masterpiece of engineering and design. This upper receiver is crafted with precision, featuring a 9" barrel and an 8" M-LOK handguard, ensuring optimal performance and ease of use …

Daniel Defense's DDM4 300S Upper Receiver Group is a testament to superior engineering and design. Featuring a 10.3-inch cold hammer forged barrel with chrome lining and a pistol length gas system, this upper receiver ensures optimal performance and.…

The Sons Of Liberty Gun Work M4-89 11.5" 5.56 URG is a testament to precision engineering and robust design. Featuring a combat-grade barrel and a QPQ corrosion-resistant finish, this upper receiver group is crafted for reliability and performance. I…