CMMG ENDEAVOR ZEROED Mk4
5.56x45mm NATO cal., DI, rifle length gas system, 18 in. stainless steel barrel, Zeroed muzzle brake, non-adj. gas block, 20 shot Magpul PMAG, Zeroed parts, Mil-Spec SST, integrated trigger guard, Magpul MOE rifle stock, EML15 M-LOK handgua...