The R18 MK2A2 is a lightweight, gas operated, air cooled, magazine fed semiautomatic rifle designed and built by Sterling Arms in Canada.

Featuring improved ambi controls, bolt catch, non-reciprocating charging handle and an easy to access magwel flush with the trigger guard for easy and fast reloads. 

The Sterling Arms R18 MK2 will easily accept most Drop-In AR-15 triggers on the market. 

Barrel material is CrMoV Mil-B-11595 Material, 18.6 in. length, 6 grove with a 1 to 8 twist rate with a threaded (1/2 X 28) muzzle for the installation of a muzzle brake.

These rifles are equipped with a color matching Magpul K2 pistol grip and MOE stock.