BT BT-4 Electronic Grip Frame Black Electronic Loaders and 98 Custom Pro E's

and 98 Custom Pro E's

The two rearmost o-rings capture all of the air released and forces it through the bolt to fire the ball

Embedded rubber silicone locks the harness in place preventing it from slipping or sliding

One piece velocity adjuster / spring guide

Techt did this by aiming to make the most air efficient bolt while achieving the lowest possible sound signature

BT BT-4 Electronic Grip Frame Black Electronic Loaders and 98 Custom Pro E'sThis will fit on BT 4 paintball guns. It turns your BT 4 into an electronic gun which will increase your firepower out on the field. Firing modes: Semi Auto Ramping 13 bps Ramping 10 bps Full Auto 10 bps Full Auto 13 bps