TechT BT TM7/TM15 MRT Upgrade Bolt Spring Shotgun so you needn't worry about

so you needn't worry about the pieces wearing out after just a few paintball outings

More specifically

1 - Front Bolt

as if there were no vocal obstructions

balanced construction for all day play and an adjustable stock for a comfortable firing position

TechT BT TM7/TM15 MRT Upgrade Bolt Spring Shotgun so you needn't worry aboutLike all of TechT's bolts, the TM7 and TM15 MRT bolts have been through rigorous R&D and field testing. This testing guided the bolt to what is now the MRT. Initial prototypes saw the removal of the "cup seal" on the front of the stock bolt. After testing various other o rings and seals, TechT decided that the MRT needed this cup seal on the front of the bolt for the best performance. The removal of this cup seal, like on other competitors' bolts,