.223 Rem | 5.56 NATO

Diamondback

Diamondback 5.56 NATO AR-15 Rifle with 16-inch Barrel and M-Lok Handguard in Camouflage

Patriot Ordnance Factory (POF)

Patriot Ordnance Factory Minuteman 5.56 NATO Rifle with 13.75" Barrel and Aluminum Receiver, Part #02047

Sig Sauer

Sig Sauer M400 TRDV2 5.56 NATO Semi-Auto Rifle with 11.5-Inch Barrel, Black Finish, and Optic-Ready Design

Hi-Point Firearms

Hi-Point HP15R-556 16-Inch M-LOK Semi-Auto Rifle in 5.56 NATO with Black Aluminum Receiver

Diamondback

Diamondback 5.56 NATO DB15 ML Rifle with 16-Inch Threaded Barrel and Adjustable Stock

Diamondback

Diamondback DB15 Carbon Series 5.56 NATO Rifle with Flat Dark Earth Cerakote Finish and 16-Inch Threaded Barrel

Aero Precision

Aero Precision M4E1 Pro Rifle 5.56 NATO with 16-Inch Barrel in OD Green - Part APCR640450

Aero Precision

Aero Precision M4E1 Pro Rifle 5.56 NATO with 16-Inch Barrel - Kodiak Brown Anodized Aluminum Receiver

Seekins Precision

Seekins Precision 0011300097-F Black DMR Rifle in .223 Wylde with 18-Inch Stainless Steel Barrel

Diamondback

Diamondback DIA 5.56 NATO DB15 16-inch Rifle with Magpul Carbine Stock and A2 Flash Hider

Keltec

Keltec RDB 5.56x45mm NATO 20+1 17.30" Black Receiver Fixed Bullpup Black Stock Black Polymer Grip

Keltec

Keltec RDB20 5.56x45mm NATO Semi-Auto Rifle with 20.5" Barrel and Ambidextrous Features