The BT-4 Player’s parts kit has everything you need to get you back in the game.

Player Parts Kit Includes:

1 drive spring
1 drive spring pin
2 ball detents
1 shock absorber o-ring
1 valve / rear bolt o-ring
1 lower grip screw
1 lower grip nut
2 valve bolts
1 long receiver bolt
2 short receiver bolts
2 receiver bolt nuts
1 grip panel scrip
1 sear spring