.223 Rem | 5.56 NATO

Daniel Defense

Daniel Defense DDM4 M4A1 5.56 NATO Rifle with 14.5-Inch Threaded Barrel and Flat Dark Earth Handguard

Aero Precision

Aero Precision M4E1-T AR-15 Rifle with 16-Inch 5.56 NATO Barrel and Magpul SL Stock

Daniel Defense

Daniel Defense DD M4A1 Carbine Rifle 5.56x45mm NATO, 14-Inch Barrel, Black Hardcoat Anodized, Model 0208806027055

Aero Precision

Aero Precision APCR640441 M4E1-T 5.56 NATO Mid-Length AR-15 Rifle with FDE Finish

Daniel Defense

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

Daniel Defense

Daniel Defense 0208815126011 DDM4 M4A1 5.56x45mm NATO 30+1 14.50" Barrel w/Flash Suppressor, Mil-Spec Brown Cerakote, 6 Position Stock w/SoftTouch Overmolding

Daniel Defense

Daniel Defense DDM4 M4A1 CA Compliant 5.56x45mm NATO Rifle with 14.5-Inch Barrel and SoftTouch Stock

LWRC

LWRCI ICDIR5B16ML 5.56 NATO Carbine with 16.1" Barrel and Adjustable Stock

Sig Sauer

Sig Sauer M400 V2 5.56 NATO Semi-Auto Rifle with 16-Inch Threaded Barrel and Magpul SL-K Stock

Sig Sauer

Sig Sauer M400 V2 5.56 NATO Semi-Auto Rifle with 16-Inch Barrel and Magpul SL-K Stock

Sig Sauer

Sig Sauer M400 5.56 NATO Semi-Auto Rifle with 16-Inch Stainless Steel Barrel and Magpul SL-K Stock

Sig Sauer

Sig Sauer RM40016BTRDV2COIL M400 Semi-Auto Rifle with 16-Inch Barrel and Magpul SL-K Stock