CNC Machined Piston and spring guide w/ upgraded spring for VSR-10 compatible airsoft sniper rifles.
Works with MB02 and MB03 rifles, and many others.
Increases FPS to approx 500 with 0.20g BBs. Also much more durable than the original plastic parts.
Note: Not compatible with APS2 version rifles such as UTG L96 (SOFT-S368 series)