.223 Rem | 5.56 NATO

Warrior Systems

Warrior Systems WSM15 5.56mm Rifle with 16-Inch Barrel and 50-Round Drum Magazine

Warrior Systems

Warrior Systems WSM15 5.56mm Semi-Auto Rifle with Collapsible Stock and 10-Round Drum Magazine

Colt

Colt M4 Carbine MPS in Flat Dark Earth with Magpul MOE-SL Furniture and MBUS Sights

Christensen Arms

Christensen Arms CA5FIVE6 FFT 5.56 NATO Semi-Auto Rifle with Collapsible Stock and Carbon Fiber Barrel

Raptor Defense

RD15 5.56MM 16" BLACK 15+1

Wise Arms

Wise Arms WA-15B 5.56mm Sniper Grey Semi-Auto Rifle with Collapsible Stock and M-LOK Handguard

Diamondback Firearms

Diamondback Firearms Obsidian DB15 Rifle in Jungle Green Cerakote with 16-Inch M-LOK Rail and Collapsible Magpul Stock

Wise Arms

Wise Arms WA-15B 5.56mm Midnight Bronze Semi-Auto Rifle with Collapsible Stock and M-LOK Handguard

Wise Arms

Wise Arms WA-15B 5.56mm White Rifle with Collapsible Stock and M-LOK Handguard

Wise Arms

Wise Arms WA-15B 5.56mm ODG Tiger Stripe Semi-Auto Rifle with Collapsible Stock and 30-Round Magazine

Colt

Colt Law Enforcement Carbine M4 with 16-Inch Barrel and MAGPUL MBUS Sights

Wise Arms

Wise Arms WA-15B 5.56mm White and Sig Grey BW Cerakote Rifle with Collapsible Stock and 30-Round Magazine