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

SMITH AND WESSON MP15 Sport II 5.56mm New Jersey Compliant

Smith and Wesson M&P15T AR15 5.56 / .223 Rem 16 Barrel 30-Rounds M-LOK

Geissele Automatics Super Duty MOD 1 12.5" 5.56 NATO Pistol ,DDC

Stag Arms Stag 15 Project SPCTRM Flat Dark Earth 5.56 16 Barrel 30-Rounds

Springfield Armory ST916556BMALC Saint 5.56x45mm NATO 16in 10+1 Black Hard Coat Anodized Rec Black Trinity Force Breach Blade Stock Black Bravo Mod 3 Grip Right Hand with M-LOK Handguard

Armalite M15 5.56 Defensive Sporting Rifle A2 Sight DEF15F

Kel-tec RDB Defender .223 Rem/5.56 AR-15 Rifle, Brown Tan - RDBDTAN

SMITH AND WESSON MP15 Tactical Limited Edition 5.56mm Rifle with Engraved Receiver

TAVOR SAR Flat-Top B16 5.56mm Rifle

Del-Ton SM 316 Flat Dark Earth / Black 5.56 / .223 Rem 16 Barrel 30-Rounds

ET Arms Inc Omega-15 5.56x45mm 16" AR Rifle, Black - ETAGOMGA556ML15

American Tactical Omni Hybrid Pistol 5.56 NATO 7.5 Barrel 30-Rounds

Diamondback Firearms DB15 5.56x45mm 16" AR Rifle, Flat Dark Earth - DB175AK611

CMMG BANSHEE MK4 556

Sons of Liberty Gun Works LRF, Sage Dynamics, Semi-auto, AR, 223 Remington/556NATO, 13.7 in Pinned (16 in OAL) Barrel, Mid-Length Gas System, Cerakote Finish, Olive Drab Green, Flat Dark Earth Magpul

DPMS "Kitty Kat" 5.56 7.5" A4 Quad Rail CAR Brace Pistol, Black

Larue LT15 16" 5.56x45mm QUAD Rail Rifle 30rd, Black

ATI AR-15 Alpha Max 10.5" 5.56mm NATO 30rd Pistol - GAX55610ML105

Noveske Gen 4 .223 Remington AR Rifle with 16" Barrel, Green - 02000563BG

LWRC DI MultiCam 5.56 / .223 Rem 16.1 Barrel 30-Rounds Magpul Stock

FRANKLIN ARMORY M4-HTF

Diamondback Firearms DB15 5.56x45mm 16" AR Rifle, Black - Durable, High-Performance for Tactical Precision and Reliable Shooting - DB175AK601

Ruger AR-556 MPR Frazzled Brown 5.56 / .223 Rem 18 Barrel 30-Rounds

Ruger AR-556 OD Green 5.56 NATO/.223 Rem 16 Barrel 30-Rounds Adjustable Stock