You are here: Home > Griffin Piston Thread Pitch > 1/2x28
Sort By:
Page of 1
Griffin Armament Revolution Silencer Pistons
Griffin Armament Revolution Silencer Pistons
MSRP: $79.00
Sale Price: $75.00
JoeBob dun saved you $4.00!
These pistons are required for use with the Revolution and Resistance 9 and 45 silencers and for the Optimus in the pistol configuration. The Revolution 9 ships with a 1/2x28 piston and the Revolution 45 ships with a .578x28 piston.

It is important to intermittently clean and lubricate the exterior of the piston to ensure smooth reciprocation with the O ring in the piston retainer.

O-Rings should be replaced intermittently when worn to ensure alignment of the silencer with the booster assembly. Failure to replace damaged or worn O-rings could result in a baffle strike or damage to the piston components.

These pistons are H900 heat treated with a rust inhibitor. Please note, color and color pattern will vary due to the heat treatment.

  • 17-4 construction
  • H900 heat treated with rust inhibitor

1/2x28 - GAR1228
.578x28 - GAR57828
13.5x1mm LH - GAR1351LH