Find out what Flanker Tanker, who is now back to making airsoft reviews, think of the the ASG Co2 Ruger Mk 2 Airsoft Pistol. A non-blowback, double action pistol, this is made mainly of metal with fibre reinforced plastic. It is a powered by 1 12 gram CO2 capsule and has an ammo capacity of 15 6mm BBs.