Kingman Training applies the latest breakthrough patented "RSV" (Reversal Striker Valve) system into this new life-sized marker. The KT marker gives a true simulated weight and feel, comparable to a real hand pistol. The marker uses 11mm paintballs powered by a 12 gram CO2 cartridge. This new 11mm paintball size is between a 6mm BB and 17mm paintball (.68 Cal.). Each "Magazine" holds 9 paintballs and shoots up to 250 feet per second. Each 12 gram CO2 cartridge can shoot up to 80 paintballs, giving the KT Marker unrivaled air efficiency. Each KT marker comes with 100rds of 11mm paintballs, two 12gram CO2 cartridges, Squeegee, and safety barrel blocking device.