Upper Receivers/Conv Kits

CMMG Resolute MK4 6mm ARC Upper with 16.1" Barrel, Black - 60B1091ABExperience the power and precision of the CMMG Resolute MK4 6mm ARC Upper! This cutting-edge upper receiver group is designed to deliver exceptional performance in a lightweight,...

Hm Defenses Mission Is To Advance Ar15 / Ar10 Rifle Technology To Its Highest Level. They Strive To Create Rifles That Are More Accurate, Easier To Maintain And Dependable In Extreme Conditions. 1. Barrel :The HM MONOBLOC upper includes an...

HM Defense's Mission Is To Advance Ar15 / Ar10 Rifle Technology To Its Highest Level. They Strive To Create Rifles That Are More Accurate, Easier To Maintain And Dependable In Extreme Conditions.1. Barrel :The HM MONOBLOC upper includes an...