Patent ID: 8397705

Claim:
A pneumatic paintball marker configured to fire a paintball, said pneumatic paintball marker comprising: a body member in the shape of a gun and having a longitudinal bore; a trigger connected to said body member and configured to move between a firing position and a non-firing position; a barrel extending from said body member and in flow communication with said longitudinal bore; a bolt assembly housed in said bore and having a cap, a cylinder, and a bolt, said bolt being configured to translate longitudinally within said cap and said cylinder, said cylinder having forward and rear bolt stops, at least one of said forward and rear bolt stops having an inner surface, at least a portion of said inner surface having a smaller diameter than a portion of said cylinder disposed between said forward and rear bolt stops; a sail extending radially from said bolt and being configured to hinder gas flow between said bolt and said cylinder; a pneumatic regulation system configured to provide a first pneumatic pressure on said sail to translate said bolt towards said barrel when said trigger is in said firing position, said pneumatic regulation system further configured to provide a second pneumatic pressure against said sail that hinders said bolt from translating towards said barrel when said trigger is in said non-firing position; and one or more bumpers positioned in the proximity of said sail and between said bolt and said cylinder, said one or more bumpers being sized to enter at least one of said forward and rear bolt stops so as to contact said inner surface and decelerate said bolt by frictional forces between said one or more bumpers and said inner surface, said one or more bumpers preventing a bouncing of said bolt off said cylinder, thereby providing for a smoother operation of said pneumatic paintball marker for optimal flow of compressed gas and for improved paintball speed.