JJ Airsoft steel trigger box 90° + piston & spring guide for vsr10 sniper rifle

New aluminum CNC case with steel made strongest parts to assembly
PPS steel/aluminum 90 degrees piston and ball bearing spring guide are included
ideal use with hi power springs and cylinder units
soft release technology allows zero trigger pressure when trigger pulled
all the internal components are made to optimize the durability and resistance
rear piston portion with 90 degrees rack can be installed on PDI pistons
exclusive use only with marui vsr10 and 100% compatible sniper guns

PS: springs and some lever must be not included, please use the original VSR where necessary