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

16 Reviews

  • 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!

  • 5
    3 Lug Interface for Optimus Suppressor

    Published by Robin Bagesse on 28th Dec 2022

    Really fast shipping before Christmas! Installed this in my Optimus short configuration and mounted it on my Angstadt Arms 9mm pistol equipped with their 3 lug muzzle device. Simple and fits like a glove. Workmanship is excellent as well.

  • 5
    Great Products

    Published by C.Fain on 23rd Aug 2022

    I bought to mount on three of my PCC's that have a 3 lug mount, 2 of which are Griffin 3 lug mounts. I am also using the 1.375x24 booster housing with the 3 lug interface with my Rex MG7 suppressor, I am very happy with how they easily everything goes together and how easy it is to mount the suppressor now.

  • 5
    3 lug interface

    Published by Kyle Armstrong on 8th Jun 2022

    High quality component!
    Perfect fit on my octane 9.
    Locks on tight onto my HK SP5s,
    and MPX in conjunction with the Griffin 3 lug barrel adapter.
    Thank you Griffin Armament!

  • 5
    Easy fit

    Published by Edgar on 9th Mar 2022

    Super easy to install and works really well.

  • 5
    Great addition

    Published by Jerad Moore on 18th Feb 2022

    Once I receive my suppressor I’m sure it will be amazing. Quality seems to be really good and customer service was excellent

  • 5
    GA tri-lug on Omega 9k

    Published by H Vinh on 6th Oct 2021

    Bought this adapter for my Omega 9k because the Silencerco one is forever out of stock. Threads on perfectly with no issues. Spring tension is wonderful with tight lockup. Adds very little overall length to the can and sound suppression to my ears is about as good as it is with SiCo direct thread/booster on same gun. Overall love how the two play together.

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