PPS Upgrade Kit for L96, MB01, MB04, & MB05 Sniper Rifles

CNC Machined Piston and spring guide w/ upgraded spring for L96 airsoft sniper rifles. Works with MB01, MB04, and MB05 rifles, and many others. Increases FPS to approx 500-550 with 0.20g BBs. Also much more durable than the original plastic parts.