PLAN-A™ XL, Taper Mount Adapter for OMEGA™, NOMAD™, & other 1.375x24 threaded suppressors

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The Taper Mount PLAN-A™ XL adapter provides a Griffin Taper Mount interface for Silencerco® Hybrid™, OMEGA™, and Harvester 338™ as well as DEAD AIR ARMAMENT™ NOMAD™, and other suppressors with mount interface inside diameter threading of 1.375x24.   No proprietary tools required.  Machined in our Watertown headquarters from billet 17-4 stainless steel, this adapter provides a precision made interface that gives you access to nationally recognized Griffin Taper Mounts and accessories.   Precision, durability, and value are at the core of Griffin product design and manufacturing.  This product allows you to affordable kit up with the best muzzle devices in the industry.

The Plan-A™ XL adds 0.80" in length over the original Plan-A™ Taper Mount Adapter, or 1" to the suppressor OAL which allows for more silencers to be compatible with a wider range of Griffin Armament Taper Mount muzzle devices. 


  • 17-4 PH SS Billet Machined
  • Black Nitride finish
  • 2.5 Ounce Weight
  • Taper Mount Repeat-ability and versatility
  • Made in the USA


Silencerco® is a federally registered trademark of Silencerco LLC. and is one of many trademarks owned by Silencerco LLC. Griffin Armament is an independent manufacturer of parts and accessories that fit Silencerco® products, however it is not affiliated with or endorsed by Silencerco LLC.  The use of Silencerco® on this page is merely to advertise the sale of compatible parts or components.  


DEAD AIR ARMAMENT™ and NOMAD™ are trademarks of SOUND MODERATION TECHNOLOGIES LLC®. and are two of many trademarks by SOUND MODERATION TECHNOLOGIES LLC®. Griffin Armament is an independent manufacturer of parts and accessories that fit SOUND MODERATION TECHNOLOGIES LLC products, however it is not affiliated with or endorsed by SOUND MODERATION TECHNOLOGIES LLC®.  The use of NOMAD™, DEAD AIR ARMAMENT™, and SOUND MODERATION TECHNOLOGIES® on this page are merely to advertise the sale of compatible parts or components.  

Type Of Part:
Attachment System:
Taper Mount

12 Reviews

  • 5
    Plan -A XL Taper mount

    Published by Brian Z on 27th Feb 2024

    Very well made and works as a blast shield for all the taper mount sizes on my Bushwacker 46. Ads a little to overall legnth, but looks good. It would be nice if there was an 1 1/4" slot on one of the wrenches to help unscrew it in case it got too tight. I just don't over tighten and its works fine...but first install on can was very difficult to remove without help from a tool. Im very pleased overall.

  • 5

    Published by Adam on 16th Jan 2024

    This is a good quality product, providing a method for me to use whisper pickles of multiple brands on all my rifles fitted with the taper mount flash hiders.

  • 5

    Published by AZ desert rat on 6th Dec 2023

    Fit and finish is superb! The fit up to the other company's tube is fantastic and it rides very nice across all the various Griffin Taper Mount muzzle devices on my hosts. I own a Paladin and a Recce, but needed this "adapter" to bring another can into the family of Griffin interchangeability. I like the "XL version" over the standard Plan A due to the extra volume, and the ability to extend a longer muzzle device into the can without worrying about hitting the baffle stack.

  • 5
    Plan A Adapter

    Published by Lajos V on 26th Sep 2023

    I purchased this to see if I could use it to convert my Banish 30 suppressor to taper mount. The threads just quite don’t line up. No fault of griffins as they use the standard pitch. The actual adapter is well machined and threads onto my taper mount muzzle devices well.

  • 5
    XL Plan a taper mount adapter

    Published by Obi-wan nairobi on 31st Mar 2023

    Excellent machining, fir and finish from Griffin as usual. I've ordered from them several times and always feel it is money well spent. All my rifles are setup on taper mount devices and I use their adapters for my form 1 can. Love everything I've ever purchased from them and will be buying a suppressor from them soon. Keep doing what you are doing Griffin! Excellent products and customer support when I've needed it. Also got some nifty stickers with my last order which I'm a big fan of! It's simple enough, but makes you feel all special and what not

  • 5
    Quality Excellent

    Published by Stephen Harp on 31st Oct 2022

    Griffin always has the best quality. This works great in my Bushwhacker.

  • 5
    High Quality Mounting Solution

    Published by Brandon P on 5th Apr 2022

    Excellent addition to the Bushwacker 46 system. Looking forward to expanded QD compatibility and larger blast chamber the XL provides!

  • 5

    Published by Newnan Arms Company on 24th Mar 2022

    Can confirm this allow a silencerco 46 and rex 308 can to fit on the flash comp.

  • 5
    Great Fit and Finish

    Published by James Nguyen on 17th May 2021

    I needed this for a longer Taper Mount muzzle and this fit the needs!

  • 5
    Taper Mount

    Published by Glyn on 10th Jul 2020

    Top quality fit and finish quick shipping excellent product