.223 Rem | 5.56 NATO

Springfield Armory

Springfield Armory Hellion 5.56 NATO Bullpup Rifle with 18-Inch Barrel and Adjustable Stock

Springfield Armory

Springfield Armory Saint Victor V2 Pistol Rifle in 5.56 NATO with Collapsible Stock

Springfield Armory

Springfield Armory Saint Victor V2 Rifle 5.56 NATO with Folding Stock and Magpul Magazines

Springfield Armory

Springfield Armory Saint Victor V2 5.56 NATO Rifle with Collapsible Stock and 4 Magpul Magazines

Springfield Armory

Springfield Armory Saint Victor V2 5.56 NATO Rifle with Magpul PMAGs and B5 Systems Stock

Heckler & Koch (HK USA)

Heckler & Koch MR556 A4 5.56 NATO Rifle with Collapsible Stock 81001033

Diamondback

Diamondback Carbon DB15 Rifle in 5.56 NATO with Collapsible Stock

Heckler & Koch (HK USA)

Heckler and Koch MR556 A4 5.56 NATO Rifle with Collapsible Stock and Gray Cerakote Finish

Heckler & Koch (HK USA)

Heckler & Koch MR556 A4 5.56 NATO Rifle with Collapsible Stock 81000827

Diamondback

Diamondback Carbon DB15 Rifle 16-inch 5.56 NATO with M-LOK Rail and Collapsible Stock

Heckler & Koch (HK USA)

Heckler & Koch MR556 A4 5.56 NATO Rifle with Collapsible Stock

Diamondback

Diamondback DB15 5.56 NATO Rifle with Flat Dark Earth Finish and M-LOK Rail