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...

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...

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)...

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...

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...

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...

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...

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...

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...

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...

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,...

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...