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

Rock River Arms LAR-15M R3 Competition 5.56x45mm 18", Black - AR1700V1

Rock River Arms LAR-15M Assurance-C Carbine 5.56x45mm 16", Black - AR1900

Rock River Arms Operator DMR LAR-15M .223 Remington/5.56x45mm 16" AR Rifle, Black - OP1510

ET Arms Inc Omega-15 5.56x45mm 16", Black - ETAGOMEGA556ML1510

Unbranded AR .223 Remington AR Rifle with 16" Barrel, Black - UN223WYBR0004

CMMG Dissent 10.50" Upper 5.56x45mm with 1:7 Twist Rate and M-LOK Rail - Pistol-Length with Charging Handle - Armor Black - 55B8D86AB

CMMG Dissent MK4 5.56x45mm 6.50" 30rds, Tungsten Gray Cerakote - 55A938F-TNG

Black Rain Ordnance Fission 5.56x45mm 16" Black Rifle - Versatile Firearm - BROSSCAMOJUNGLE

Auto-Ordnance 1927A-1 Deluxe .45 ACP Semi-Auto, American Walnut - T1-14-50DC2

Colt LE6920 5.56x45 AR-15 Rifle With Rail, Black - LE6920-FBP1

Sig Sauer MCX Spear-LT SBR Coyote .223 Rem /5.56 NATO 11 Barrel 30-Rounds

SIG SAUER M400 Tread 5.56mm Semi-Automatic Rifle

Sons of Liberty Gun Works .223 Remington AR Rifle with 16" Barrel, Black - M48916

Sons of Liberty Gun Works .223 Remington AR Rifle with 13.7" Barrel, Black - M48913.7

Sig Sauer MCX Spear 5.56 NATO 11.5" 30rd Pistol, Black - PMCX-556N-11B-LTB

Del-Ton Inc Echo 5.56x45mm 16", Black - RFTH16MLOK

Aero Precision M4E1 Flat Dark Earth 5.56 / .223 Rem 16 Barrel 30-Rounds

ATI Omni Hybrid Maxx RIA P3P Flat Dark Earth/Black 5.56 NATO/.223 REM 16 Barrel 30-Rounds

IWI Tavor X95 5.56 NATO / .223 Rem 18.5 Barrel 10-Rounds Bladed Grip

Radical Firearms RPR CO Compliant 5.56x45mm 16" AR Rifle, Black - Colorado Legal Tactical - FR16-5.56SOC-15RPR-CO

CMMG Resolute Mk4 5.56x45mm 16.10", Black - 55AC780AB

Diamondback DB15 .223 Remington AR Rifle with 16" Barrel, Flat Dark Earth - DB1736K061

Springfield Saint Victor AR-15 5.56 NATO 16" 30rd Rifle Gear Up Bundle- STV916556B-B5-GU23

Steyr Arms AUG A3 M1 5.56x45mm NATO 16" 1:9" 1/2x28 TPI Bbl NATO Semi-Auto Rifle w/RH Extended Picatinny Rail AUGM1BLKNATOEXT