.223 Rem | 5.56 NATO

Heckler and Koch (HK USA)

HK MR556 A4 11-inch 5.56x45mm Semi-Auto Rifle with M-LOK Handguard and Black Finish

Heckler and Koch (HK USA)

HK MR556 A4 5.56x45mm Rifle with 11-Inch Threaded Barrel and M-LOK Handguard

ATI

American Tactical Inc ATI Milsport Semi-Auto Pistol in 5.56 NATO with 30-Round Magazine and 7-inch M-LOK Hand Guard

Q

Q Honey Badger 5.56 10-Inch Pistol with Collapsible Stock and Adjustable Features

Franklin Armory

Franklin Armory CA7 Pistol in 5.56 NATO with 7.5-inch Barrel and Optics Ready Design

ATI

American Tactical Inc Alpha Maxx 7" 5.56 Semi-Auto Pistol with 60-Round Magazine

ATI

American Tactical Inc Alpha Maxx 5.56 Semi-Auto Pistol with 30-Round Magazine

Diamondback Firearms

Diamondback Firearms Obsidian DB15 Pistol in 5.56 NATO with Flat Dark Earth Finish

ATI

American Tactical Inc Alpha Maxx 5.56 NATO Semi-Auto Pistol with Flat Dark Earth Finish

ATI

American Tactical Inc Alpha Maxx 5.56 Semi-Auto Pistol with 60-Round Magazine - Matte Black

ATI

American Tactical Inc Alpha Maxx 5.56 NATO Semi-Auto Pistol with Flat Dark Earth Finish and 30-Round Magazine

ATI

American Tactical Inc Alpha Maxx 5.56 Semi-Auto Pistol with 60-Round Magazine