Results for 5.56x45mm NATO Upper Receivers

Colt Monolithic AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel

Geissele Super Duty AR-15 Barreled Receiver 5.56x45mm NATO 16" Barrel Black

Radian Weapons Model 1 Complete Upper Gray .223 Wylde 16 Barrel

Radian Weapons Model 1 Complete Upper Gray .223 Wylde 14.5 P&W Barrel

Faxon AR-15 ARAK-21 Upper Receiver Assembly 5.56x45mm NATO 12.5" Barrel

DPMS Kitty Kat Complete Upper 5.56 7.5 Threaded Barrel Quad Rail Handguard

CMMG Dissent MK4 Upper 5.56 10.5 Barrel

Spikes Tactical 16" Upper 5.56x45mm 1:7 Quad Rail Mid-Length with BCG, Black - Enhanced Carbine Upper - STU5035CQ2F

Geissele AR-15 Super Duty MOD1 Pinned and Welded Complete Upper Receiver 5.56x45mm 13.9" Cold Hammer Forged Barrel M-LOK DDC

Maxim Defense PDX AR-15 Complete Upper Receiver 5.56x45mm 5.5" Barrel Black

Maxim Defense PDX AR-15 Complete Upper Receiver 5.56x45mm 5.5" Barrel Arid

Colt Firearms LE6920 Complete Upper 5.56 NATO / .223 Rem 16 Barrel

One Horse OH-15 Complete Pistol Upper 5.56 7.5 Barrel CH BCG

Geissele Automatics Super Duty Stripped Upper Flat Dark Earth 5.56 16 Barrel

Colt AR-15 Pistol Complete Upper Receiver 5.56x45mm NATO 14.5" Barrel CMR M-LOK Handguard

Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 14.5" Barrel 12.7" ATLAS R-ONE Handguard with Pinned Gamma SL Muzzle Device Black

Radian Weapons Model 1 Builder Kit Gray 5.56 10 Handguard

LMT Defense MRP-L M-LOK SPECWAR Assembled Upper 5.56

LMT Defense MRP-L Quad Assembled Upper Receiver 5.56/300 BLK 13.25

DPMS "Kitty Kat" 7.5" 5.56 1:7 C7 Carry Handle Upper

Colt Firearms LE6933 Complete Upper 5.56 NATO / .223 Rem 11.5 Barrel

Noveske AR-15 N4 Infidel Pinned and Welded Complete Upper Receiver 5.56x45mm NATO 13.7" Barrel NSR-15 M-LOK Handguard Black

Midwest Industries AR-15 Barreled Upper Receiver 223 Remington (Wylde) 16" Barrel 15" Handguard

FN FN15 AR-15 Complete Upper Receiver 5.56x45mm NATO 16" Barrel