.223 Rem | 5.56 NATO

LWRC

LWRCI IC-MKII 5.56 NATO Rifle with 14.7-inch Spiral Fluted Barrel

LWRC

LWRC ICMKIIR5CK16 5.56 NATO AR-15 Rifle with 16.1-inch Spiral Fluted Barrel

LWRC

LWRCI IC-MKII 5.56 NATO Rifle with 14.7-inch Spiral Fluted Barrel and Ambidextrous Design

LWRC

LWRCI IC-MKII 5.56 NATO Rifle with 16.1-inch Spiral Fluted Barrel and Ambidextrous Design

Daniel Defense

Daniel Defense DDM4 MK12 SPR 5.56 NATO Rifle with 18-inch Barrel and SoftTouch Stock

FN

FN SCAR 15P SBT Brace Semi-Automatic Pistol with 7.5-inch Barrel in 5.56x45mm - Black

Battle Arms Development

Battle Arms Development OIP003 Gen3 .223 Rem/5.56 NATO Rifle with 16-Inch Barrel

Heckler & Koch (HK USA)

HK MR556 A4 Semi-Auto Rifle with 11-Inch Barrel in Patriot Brown and Black Synthetic Finish

Heckler & Koch (HK USA)

HK 81001202 MR556 A4 5.56x45mm Rifle with 11-Inch Threaded Barrel and M-LOK Handguard

Heckler & Koch (HK USA)

HK MR556 A4 Semi-Auto Rifle with 16.5-inch Threaded Barrel and Ambidextrous Features

Heckler & Koch (HK USA)

HK MR556 A4 Semi-Auto Rifle with 16.5-inch Threaded Barrel, 5.56x45mm, Patriot Brown Picatinny Rail, M-LOK Handguard, and Ambidextrous Safety

Daniel Defense

Daniel Defense MK12 SPR Rifle with 18-Inch Barrel in 5.56 NATO – Black Hardcoat Anodized Finish