Silencer Pistons

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These Pistons are considered legacy technology parts but are available for users who choose not to upgrade to either the CAM-LOK® (Covert Application Mount - Locking) Universal Piston System or the EZ-LOK™ Universal Rapid Index QD Piston Attachment System. These are available in popular but limited thread pitches. 

These Pistons are for use with the Revolution™,Resistance®, Optimus® 9mm, and Bushwhacker® 46 in their pistol configurations. 

It is important to intermittently clean and lubricate the exterior of the piston and interior of the booster housing 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.

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


Features :

  • H900 heat treated for improved durability and wear resistance 
  • 17-4 stainless steel material

Additional Details

Type Of Part:
Thread Pitch:
Thread Pitch:
Thread Pitch:
13.5x1mm LH
Thread Pitch:
16x1mm LH
Thread Pitch:
16x1mm RH
Thread Pitch:
9/16x24 RH


10 Reviews

  • 5
    Pistol piston

    Published by Daniel on 14th Jan 2022

    Top of the line

  • 5

    Published by Mark on 4th Oct 2021

    Piston allows my Bushwhacker to function perfectly

  • 5
    1/2-28 special piston

    Published by Eric A on 14th Jul 2020

    Perfect fit. Great quality. Well worth cost to make my Optimus function with my 9mm pistol.

  • 5

    Published by Rob N on 26th May 2020

    Exactly what I needed to fire my Bushwhacker 46 on my G43. Thanks!

  • 5
    Sig piston adapter

    Published by Ryan Tyson on 28th Feb 2020

    Fit perfectly, fast shipping and great quality. Thank you!

  • 5
    Another Quality Piece

    Published by Hunter Stone on 3rd Jan 2020

    Like everything Griffin makes, this was high quality. Running it in a Rev 45 mounted to a Glock 22.

  • 5
    Griffin's Products Work as Advertised

    Published by Erwin on 9th Dec 2019

    I wanted to be able to use my Revolution 9 on my Sig P239 Tac. I was taken aback to find out Sig uses a LH 13.5X1 thread on the barrel since nothing is mentioned about the thread size in the owners manual. I was pleasantly surprised that Griffin makes the correct piston for the Revolution 9 and they had it in stock. I installed mine as soon as it arrived and it fit perfectly, both in the Revo9 and to the P239. Function was flawless with both subsonic and supersonic ammunition. Great products!

  • 5
    Top quality

    Published by Bill Groom on 4th Nov 2019

    I recieved this and it is a high quality part and works perfectly in my Rev 45.

  • 5
    Griffin Pistons

    Published by Defense Materials Co., LLC on 21st Dec 2018

    What we, and our customers always get from Griffin! Excellent, products, service, value!

  • 4
    great products

    Published by mike hobson on 1st Oct 2018

    The parts that I ordered are well built. The quality looks great. Will buy again. I only gave a 4 star because they didnt have a part and do not make it.

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