.223 Rem | 5.56 NATO

FN

FN 15 Carbine M-Lok Rifle in 5.56 NATO with Collapsible Stock and Matte Black Finish

Colt

Colt M4 Carbine with Magpul SL Stock and 30-Round Magazine

Colt

Colt M4 Carbine 5.56 NATO with Quad Rail and Collapsible Stock

Colt

Colt Monolithic Carbine M4 .223 Rem / 5.56 NATO with Collapsible Stock and Magpul MBUS Sights

Springfield Armory

Springfield Armory Hellion 5.56 NATO Bullpup Rifle with 20-Inch Barrel and 10-Round Magazine

Colt

Colt 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

Colt

Colt M4A1 Carbine with 16.1-inch Barrel and 30-Round

Springfield Armory

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

Springfield Armory

Springfield Armory Saint Victor V2 5.56 NATO Rifle with Tungsten Gray Cerakote Finish and Collapsible Stock

Springfield Armory

Springfield Saint Model STV916556T-B5 AR-15 Rifle with Tungsten Finish and B5 Enhanced SOPMOD Stock

Springfield Armory

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