5.56x45mm NATO Gun Parts

Luth-AR AR-15 .223 Complete Upper Assembly 24 Barrel

Primary Weapons System MK1 Mod 2-M AR-15 Ambidextrous Stripped Lower Receiver Anodized Black

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 Black

Geissele AR-15 Super Duty MOD1 Complete Upper Receiver 5.56x45mm 10.3" Cold Hammer Forged Barrel M-LOK Black

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

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

Wilson Combat Lightweight AR-10 Receiver Set Armor-Tuff

FAB Defense Magazine Well Grip Tan AR-15

LBE Unlimited Ready Build Kit Complete Upper 5.56 / .223 Rem 12.5 Barrel Mid Length Gas Handguard

Lbe Unlimited Ar75rbk Ready Build Kit 7.5 Chf Barrel

Amend2 Rifle Magazine OD Green 5.56 NATO / .223 Rem 10-Rounds for AR-15

AMEND2 Mod-2 AR15 223/5.56 10rd Magazine FDE

Amend2 AR Magazine 5.56 / .223 Rem 20-Rounds

Daniel Defense GL/SSC URG AR-15 Complete Upper Receiver 5.56x45mm NATO 12.5" Barrel

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

Geissele Super Duty AR-15 Pistol Barreled Receiver 5.56x45mm NATO 11.5" Barrel Desert Dirt

Faxon Firearms ARAK-21 5.56 NATO 16" Midnight Bronze Upper

Aero Precision M4E1 Standard Assembled AR-15 Upper Receiver Aluminum Black

Aero Precision AR15 Stripped Upper Black

BCM AR-15 Complete Lower Receiver Anodized Black Pistol Receiver Extension

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

Geissele Automatics Super Duty MOD1 5.56 12.5 Barrel w/ HuxWrx Flash Hider

KGM Suppressors R556A1 5.56 / 6mm 4.85 QD Direct Thread Mount 1/2x28