Shop 1,031 Deals on 5.56×45mm NATO Semi-Auto

Seekins DMR .223 Remington/5.56x45mm 18", Black

Bersa BAR15 5.56x45mm 7" Rifle in Black - Compact Tactical Firearm - BAR15PBM

Bushmaster M4 Patrolman Black 5.56 / .223 Rem 16 Barrel 30-Rounds Magpul

Great Lakes Firearms and Ammunition AR-15 Blue .223 Wylde 16 Barrel 30-Rounds

Great Lakes Firearms AR-15 American Flag .223 Wylde 16 Barrel 30-Rounds

Great Lakes Saved by The Splatter .223 Wylde 16", White

Great Lakes Saved by The Splatter .223 Wylde 16", Black

Great Lakes Firearms AR-15 .223 Wylde 16" AR Rifle, Battleworn Aluminum - GL15223SS B- ALM

Great Lakes .223 Wylde 16", Snow Camouflage

ATI Alpha Maxx Ria 5.56 NATO 16" 30rd Rifle, Black - ATIGAX5569ML

VKTR Industries VK-1PW 5.56x45mm 13.70" Rifle, Black - High-Performance AR Rifle, with Precision Engineering and Tactical - V-3110-0916-604

VKTR Industries VK-1 5.56x45mm 16" Rifle, Black - Reliable Tactical - V-3110-0916-601

CMMG Resolute FOB 16.10" 5.56x45mm AR Rifle - 55A1F0B

CMMG Banshee MK4 5.56x45mm 12.50" AR Pistol, Black - 55AC20AAB

LWRC .223 Remington AR Rifle with 16" Barrel, Black - ICR5TG16SPRBT

POF-USA Renegade+ 5.56x45mm 16.50" AR Rifle, OD Green - 01283

Great Lakes Firearms .223 Wylde 16", Black - GL15223SSBRZ

Black Rain Ordnance .223 Remington AR Rifle with 16" Barrel, Black - BROPATOBSIDIAN

Black Rain Ordnance Spec 15 Fusion 5.56x45mm 16" AR Rifle, White Battleworn - BRO-FUSIONWB

Great Lakes Firearms AR-15 .223 Wylde 7.50" AR Pistol, Bronze - GL15223SSPBRZ

Great Lakes Firearms AR-15 .223 Wylde 7.50" AR Pistol, OD Green - GL15223SSPODG

Great Lakes Firearms AR-15 .223 Wylde 7.50" AR Pistol, Tungsten - GL15223SSPTNG

Great Lakes Firearms AR-15 .223 Wylde 7.50" AR Pistol, Black Cherry - GL15223SSPCHY

Great Lakes Firearms AR-15 .223 Wylde 7.50" AR Pistol, Black - GL15223SSPBLK