.223 Rem | 5.56 NATO

Springfield Armory

Springfield Armory SPG SA920556BA2 5.56x45mm NATO Semi-Auto Rifle with 20-inch Barrel and A2 Fixed Stock

Sig Sauer

Sig Sauer M400 5.56 NATO Semi-Auto Rifle with 16-Inch Threaded Barrel and Magpul SL-K Stock

Sig Sauer

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

Springfield Armory

Springfield Armory ST VICTR 556 16-inch Rifle with 30+1 Capacity and B5 Enhanced SOPMOD Stock

Springfield Armory

Springfield Armory STV916556CBV2B5 ST Victor 5.56 NATO Rifle with 16-inch Barrel, Ambidextrous Safety and B5 SOPMOD Stock

Springfield Armory

Springfield Armory STV916556TV2B5 St. VICTR 5.56 NATO Rifle with 16-Inch Barrel and B5 SOPMOD Stock

Springfield Armory

Springfield Armory STV916556BCAV2 ST VICTR 5.56 NATO 16-inch Rifle with B5 Enhanced SOPMOD Stock

Springfield Armory

Springfield Armory STV914556BV2B5 ST VICTR 5.56 NATO AR-15 Rifle with 14-Inch Barrel and B5 Enhanced SOPMOD Stock

Springfield Armory

Springfield Armory ST VICTR 556 Rifle with 14-Inch Barrel, 5.56 NATO, Black B5 Enhanced SOPMOD Stock, and Ambidextrous Safety

Sig Sauer

Sig Sauer RM40016BTRDV2CA M400 5.56 NATO Rifle with 16-inch Threaded Barrel and Magpul MOE Stock

Sig Sauer

Sig Sauer M400 V2 5.56 NATO Semi-Auto Rifle with 16-Inch Threaded Barrel and Magpul SL-K Stock

Sig Sauer

Sig Sauer M400 V2 5.56 NATO Semi-Auto Rifle with 16-Inch Barrel and Magpul SL-K Stock