3 Lug Interface For Revolution, Optimus, Bushwhacker, and Resistance Series Suppressors

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The 3 lug interface assembly is an integral 3 lug assembly which adds minimal length to the suppressor. This kit allows for QD mounting of many Griffin suppressors. To view applicable calibers and ratings see individual suppressor product pages. Our 3 lug adapter requires minimal deflection of the spring bushing for installation in some cases negating the need to modify hand stops and grips that come close to the 3 lug adapter. The 9mm kit fits H&K standard 9mm 3 lug adapters as well as Griffin 3 Lug Adapters. US made Barrels from RCM and Michael's Machines comply with these dimensions as well as German HK brand barrels.

Made of 17-4 Stainless steel and with a 17-7 wire spring, this coupler kit is heavy duty for full auto applications.

Applicable to the following Griffin suppressors:

Bushwhacker 46
Resistance® 22


  • 17-4 and 17-7 construction
  • minimal length added to silencer
  • Compatible with standard 3 lug adapters
  • Lifetime Warranty


3 Lug Kit - Resistance ®22M only

This 3 lug kit is only intended for use with our Resistance 22 Suppressor


3 Lug Kit, HK, B&T, Griffin 9mm - for Resistance 9/45, Revolution 9/45, Optimus 9 & Micro, Bushwacker™ .46

This is the standard 9mm interface compatible with our 9mm 3 lug barrel adapters. Some other manufacturer's 9mm barrels and barrel adapters may be compatible, but we can only guarantee fitment to our 3 lug barrel adapters.


3 Lug Kit, HK 10mm, Griffin .45, - for Resistance .45, Revolution .45, Bushwacker™ .46"

This three lug interface is compatible with our 45 caliber 3 lug barrel adapters.


Lug Kit, B&T .45 only (APC & GHM 45) - for Resistance .45, Revolution .45, Bushwacker™ .46

This bushing is sized specifically for the 3 lug barrel of the G&T APC 45 and the B&T GHM 45

Additional Details

Type Of Part:
3 Lug Interface

22 Reviews

  • 5
    B&T version

    Published by 3 lug adapter on 19th Mar 2024

    Solid lock up and very well made. Easy on, easy off...love it!

  • 5
    3 lug adapter

    Published by YeahBuddy on 30th Jan 2024

    Works so dang well. 10/10

  • 5
    3 lug interface for MP5-40

    Published by Unknown on 28th Dec 2023

    I received it in quick time. I tried it on the three lug barrel I’m using and it fits perfectly. Not too loose or tight. Then mounted it to my Revolution/45 silencer and put it on the gun. I have to say I’m very happy how it fits together. Now if I can get to the range.

  • 5
    Griffin 3 lug interface

    Published by Jason on 21st Dec 2023

    Works perfectly on my Omega 45k attached to an MP5/10 tri lug.

  • 5
    Hella tight

    Published by Bryan Blackburn on 10th Nov 2023

    Has almost 0 wobble, wish my 9mm tri lug was that stiff

  • 5
    Tri-lug mount adapter

    Published by DC on 6th Jun 2023

    It works, it fits, and nice that alot of adapters and mounts work with all 3 of my GA cans

  • 5
    3 lug interface for revolution

    Published by Ted Nesmith on 2nd Jun 2023

    Works exactly as it should on MP5K.

  • 5
    3 Lug Interface

    Published by Silas Hendrix on 4th May 2023

    The fit and function are excellent. Some have an issue with spring rate but not me.

  • 5
    3-lug Magic!

    Published by Brandon P on 30th Jan 2023

    You can't beat a suppressed SP5...and this thing makes it easy! Lighting fast conversion between the pistol buffer and the 3-lug interface. Works flawlessly with my Griffin Bushwacker 46 and looks great, too! Can't praise Griffin enough for their excellent build quality, highly functional designs and astoundingly huge catalog of innovative mounting solutions. Put another check mark in the win column with this one!

  • 4
    Works well

    Published by Eric on 10th Jan 2023

    Works well definitely the most positive quick attachment. Needed to remove paint from tri-lug on my MP5 clone for it to fit. I wish more information was given on website that it needed a pistol piston housing to work

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