Patent ID: 7770571

Claim:
A paintball gun comprising: a barrel dimensioned to receive a frangible projectile; a breech dimensioned to receive the frangible projectile, wherein said breech is proximate to said barrel; a valve assembly operative to selectively allow flow between a supply of compressed gas and said breech; a bolt movable between a first position and a second position, wherein a crossover point is positioned between said first position and said second position, wherein said bolt is configured to engage said frangible projectile as said bolt moves toward said second position; a first drive mechanism operative to drive said bolt toward said second position; a linkage arm operatively connected to said bolt; a second drive mechanism capable of being engaged by said linkage arm, wherein said second drive mechanism drives said bolt toward said second position when said linkage arm engages said second drive mechanism; wherein said first drive mechanism drives said bolt independent of said second drive mechanism between said first position and said crossover point; wherein said linkage arm engages said second drive mechanism when said bolt travels between said crossover point and said second position so said second drive mechanism and said first drive mechanism drive said bolt in unison between said crossover point and said second position.