.223 Rem | 5.56 NATO

Colt

Colt CR6920 M4 Carbine 5.56 NATO with 16.1-inch Barrel, Black Polymer Stock and Magpul Backup Sights

Colt

Colt M4 Carbine MK4 5.56 NATO with Geissele Rail and Magpul Sights - Model LE6920-FBP2

Colt

Colt LE6920 SOCOM M4A1 Carbine with 16.1-inch Barrel and 30-Round Capacity

Springfield Armory

Springfield Saint Victor V2 AR-15 Rifle with B5 Enhanced SOPMOD Stock - 16 Inch 556 NATO

Springfield Armory

Springfield SAINT Victor V2 AR-15 Rifle with 16-Inch Barrel and B5 Enhanced SOPMOD Stock STV916556T-V2-B5

Springfield Armory

Springfield Saint Victor V2 AR-15 Rifle with B5 SOPMOD Stock, 16-inch Barrel, Coyote Finish

Springfield Armory

Springfield Saint Victor V2 AR-15 Rifle with Coyote Finish and B5 Enhanced SOPMOD Stock

Springfield Armory

Springfield SAINT Victor V2 AR-15 Rifle with 16-Inch Barrel and B5 Enhanced SOPMOD Stock

Springfield Armory

Springfield Armory SAINT Victor V2 16-Inch 5.56 NATO AR-15 Rifle with Magpul MOE Stock

Springfield Armory

Springfield Saint Victor V2 AR-15 Rifle with 16-Inch Barrel and B5 SOPMOD Stock

Springfield Armory

Springfield SAINT Victor V2 14-Inch 5.56 NATO AR-15 Rifle with B5 Enhanced SOPMOD Stock

Springfield Armory

Springfield SAINT Victor V2 B5 5.56 NATO AR-15 Rifle with 14-Inch Pinned Barrel and B5 Enhanced SOPMOD Stock