The most realistic paintball gun, the closest looking .68 caliber marker that replicates the real M4 and M16 assault rifle ever made. It comes equipped with a dependable electronic trigger capable of semi, burst, and full auto trigger group. The Co2 cylinder is either housed in the stock or in what looks like a grenade launcher, for the most tactical play. The T16 Paintball Gun, which fires .43 caliber paintballs also is equipped with a dependable electronic trigger capable of semi, burst, and full auto. The Co2 cylinder can be stored in the stock or mounted in what looks like a grenade launcher. Unlike the T68 the T16 uses a 23 rounds magazine fed feeding system. Two very reliable markers that won't let you down when you need it most!