CAM-LOK® Pistons (for tilt barrel pistols)

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The CAM-LOK® (Covert Application Mount - Locking) is a universal QD piston system comprised of two parts, the piston, and the barrel adapter.  This product page is for the piston (bronze color part that is installed in the suppressor). 

The Griffin Armament CAM-LOK® interface affords the user the ability to convert the suppressor to a much faster and more secure mounting solution on browning style action (tilt barrel) pistols vs it's legacy technology, single piece, direct thread piston counterparts.  This system provides a rapid, secure attachment to the host pistol.  Direct thread single piece pistons have several negative attributes.  They do not accept tools, and are hand tightened to the host firearm. As a result of hand installation, they loosen when the piston system reciprocates under slide cycling during the firing sequence.  This vibration and inadvertent loosening of pistol silencers, requires end users to constantly check tighten pistol silencers.  This periodically causes users to have "bad range days" with unforeseen baffle strikes and end cap strikes.  These unfortunate events cause logistically burdensome work for consumers to communicate with service departments, ship products back and forth, and sometimes assume charges for repair for these issues.  

No longer do users need to worry about their pistol suppressors loosening during use (as with traditional fixed direct thread pistons).  The CAM-LOK® system supports a 3/4" socket wrench for installation with prevailing torque, and features a taper lock system, which encourages secure attachment, despite the piston still actuating for and aft during the firing sequence.  The piston can be attached / detached in any one of three, 120 degree positions, ensuring there are no "false positive" interfacing positions to slow deployment of the suppressor onto the host firearm.  Additionally, the manufacturing accuracy of the interface is held to Griffin Armament's high quality standards for squareness, and concentricity, ensuring that each mounting position has similar and minimal POI shift influence. To support this, the mating pistons have all mating diameters and interfacing geometry qualified in a single operation, for tool quality accuracy and perfection.  A similar manufacturing theory was applied to the barrel adapter for maximum alignment accuracy.  

End users benefit from being able to attach their silencer to various adapter interfaced host firearms, without having to disassemble the suppressor and change the piston to a different thread pitch.  The CAM-LOK® pistons are "universal"; accommodating any pistol mounted with a 3 Lug CAM-LOK® barrel adapter.  Additionally, end users with different brand suppressors supported by the CAM-LOK® piston family, will be able to benefit from the interchangeability of CAM-LOK® barrel adapters between piston models. 

These Pistons are required for use with the Revolution®, Resistance®, Optimus® 9mm, and Bushwhacker® 46 in the 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.

Installation & Use Notes  : Suppressor should be tightly assembled when using this product to avoid inadvertent disassembly of the suppressor when removing it from QD barrel adapter. Barrel adapters should be installed to their host firearms with a minimum torque rating of 20 ft/lbs using a 3/4 socket and needle type torque wrench.  Use of a box end wrench will not have optimal contact with the wrench flat geometry on the adapter and may damage the adapter.

Use of the CAM-LOK® system with a fixed spacer on a fixed barrel firearm will cause damage to the suppressor.  This is for use on handguns with tilt barrel pistols only such as Glock, HK, SIG, 1911, S&W M&P....etc.   A fixed firearm would be a 9mm carbine (PCC), a bolt action, etc.  


  • Patented CAM-LOK® (Covert Application Mount - Locking) universal QD piston attachment system
  • 3 mounting positions, 120 degrees separated for rapid mounting
  • Internal taper surface locks in place with interfacing barrel adapters and drastically reduces or eliminates common baffle/end cap strikes  
  • Compatible with Universal QD pistons barrel adapters (sold separately) 
  • Total system weight is identical to legacy direct thread pistons
  • H900 heat treated for improved durability and wear resistance 
  • 17-4 stainless steel material

  *For use with all SilencerCo suppressors EXCEPT the Osprey line of suppressors. 

Additional Details

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

32 Reviews

  • 5
    Very well made piston, can't wait to try it.

    Published by Alan Sanders on 14th Sep 2023

    Very precise machining, very well made

  • 5

    Published by Hoop on 7th Aug 2023

    Works great. Detail and finish are exact.

  • 5
    Great product

    Published by Seth Hannah on 6th Aug 2023

    Used on a 45 and 9mm, both worked great.

  • 5
    Griffin Cam Lok

    Published by Gary McVey on 3rd Jul 2023

    The absolute best pistol suppressor mounting solution…I only wish they had an option for the Q erector 9…it’s the only suppressor that I am not running the Cam Lock system…really stretches the legs of your suppressors and pistols…as revolutionary as the Tri-lug

  • 5
    Very High quality

    Published by Travis Taylor on 22nd May 2023

    Very well built, very high quality, the only thing is there are not any well described assembly directions have to figure it out on your own.

  • 5
    Works great!

    Published by Nate on 23rd Apr 2023

    Such a convenience to have. It makes switching a multi can from one barrel to another so easy.

  • 5
    Cam loc piston

    Published by Terry Clark on 20th Apr 2023

    Wish I had known about this when I purchased my rugged obsidian. Have had zero problems mounting or keeping my silencer tight on all my pistols . Will definitely buy more .excellent product and fast shipping.

  • 4

    Published by Van Stahr on 27th Mar 2023

    The CAM-LOK makes it very quick and easy to switch between guns. Just watch the videos and enjoy!

  • 5
    Cam-Lok Piston

    Published by Steve Beaver on 7th Mar 2023

    Easy to use, a lot better than the screw on type.

  • 5
    Game Changer

    Published by Greg G on 2nd Mar 2023

    Love how this makes it so easy to use one silencer on multiple host firearms. I really hope they make more pistons that are compatible with other silencers like Q Erector 9 and the GSL stealth. But so far, I LOVE the CamLok system!!!

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