5.56x45mm NATO Upper Receivers

Radian Weapons Model 1 Upper Flat Dark Earth 5.56 14 Handguard

Radian Weapons Model 1 Complete Upper Flat Dark Earth .223 Wylde 14.5 Barrel

Radian Weapons Model 1 Upper/Handguard Set 8.5

CMMG 22LR AR CONVER KIT BRAVO 10RD

Spikes Tactical 5.56 NATO M4 LE Upper 16-inch Black LE

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm 11.5" Cold Hammer Forged Barrel M-LOK Black

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm with Pinned 14.5" Cold Hammer Forged Barrel M-LOK Black

Battle Arms Development Workhorse AR-15 Upper 16 Barrel 5.56 NATO 15 M-LOK Handguard

Battle Arms Workhorse AR-15 Pistol Barreled Upper Receiver 5.56x45mm NATO 9.5" Barrel

LanTac Upper Standard Receiver 5.56 NATO / .223 Rem M4 Feed Ramps for AR-15

HK MR556 A4 AR-15 Complete Upper Receiver 5.56x45mm NATO 16.5" Barrel

Gemtech GVAC Complete Upper 5.56 16 Barrel

One Horse OH-15 Complete Upper 5.56 16 Barrel SOCOM Profile

FightLite Industries MCR Dual Feed Upper 5.56 12.5 Barrel

Fortis Manufacturing Billet Dust Cover Red for AR-15

Patriot Ordnance Factory Minuteman Complete Upper 5.56x45mm NATO 16.50 Nitride Barrel

Rock River Arms AR-15 Coyote Complete Upper Receiver 223 Wylde 18" Stainless Steel Barrel 13" M-LOK Handguard Black

Rock River Arms A4 AR-15 Complete Upper Receiver 223 Remington (Wylde) 20" Barrel

Daniel Defense DD4 RIII URG .223 Rem / 5.56 14.5 Barrel

Daniel Defense M4A1 RIII AR-15 Complete Upper Recevier 5.56x45mm NATO 14.5" Pinned Barrel

Radian Weapons Upper/Handguard Set Flat Dark Earth 5.56

Luth-AR A1 Stripped Upper Receiver With M4 Feed Ramp

ZEV Technologies Stripped Forged AR-15 Upper Receiver Aluminum Matte

TacFire AR-15 Stripped Upper Receiver 5.56 NATO / .223 Rem