.223 Rem | 5.56 NATO

Armalite

ArmaLite M15TAC14 M-15 Tactical 5.56x45mm NATO Rifle with 14.5-inch Barrel and Magpul Collapsible Stock

Armalite

ArmaLite M15LTC16CO M-15 Light Tactical Carbine 5.56mm with 16-Inch Barrel and Magpul Collapsible Stock

Smith & Wesson LE

Smith & Wesson LE M&P15 .223 Rem/5.56 NATO Rifle with Carry Handle, 16-Inch Barrel, 30+1 Capacity

Smith & Wesson LE

Smith & Wesson LE M&P15TS 5.56 NATO Carbine with 16-inch Barrel and Magpul MOE Stock

Smith & Wesson

Smith & Wesson M&P15 Sport III 5.56 NATO Rifle with 16-Inch Heavy Barrel and Red Dot Sight (Part #14208)

Smith & Wesson

Smith & Wesson M&P15 Sport III CA Compliant 5.56 NATO Rifle with 16-Inch Barrel and Adjustable Stock

Sig Sauer

Sig Sauer M400 TRDV2 5.56 NATO Semi-Auto Rifle with 11.5-Inch Barrel, Black Finish, and Optic-Ready Design

Smith & Wesson

Smith & Wesson M&P15 Sport III 13952 5.56 NATO Rifle with 16-Inch Threaded Barrel and M-LOK Black Finish

Smith & Wesson

Smith & Wesson M&P15 Sport III 13953 5.56 NATO Rifle with 16-Inch Heavy Barrel and Black Aluminum Receiver

Springfield Armory

Springfield Armory HL916556Y Hellion 5.56 NATO 16-inch Bullpup Rifle in Gray

Springfield Armory

Springfield Armory HL916556YLC Hellion 5.56 NATO 16-Inch Bullpup Rifle in Gray

Springfield Armory

Springfield Armory Hellion SPG HL916556F 5.56mm NATO Bullpup Rifle with 16-Inch Barrel in Flat Dark Earth