The new W.A.S.P piston from SniperMechanic (www.snipermechanics.com). A new and innovative design, built to suit a variety of set ups and requirements. SRS Pull Bolt Only
The package features:

1 x Base Piston body
1 x Rear Sear
1 x Rear Guide Ring

The new W.A.S.P piston from SniperMechanic. A new and innovative design, built to suit a variety of set ups and requirements. VSR Version
Weight
Adjustable
Silent
Piston