Dun't worry guys
I be a gun expart on dees thangs.
Yah gotta take and use sum dat Duba-Ya Dee 40 and spray it on dat der bullet so the door opens when you apply some dat der force.
you have no idea what you're talking about
anyway i just pushed down on the gear, up on the door, and sideways on the bullet and after a few minutes of swearing at it, it slid down the barrel

fission maccomplish