Tapered shoulder barrel (SIG) adapter

Now: $19.95
(You save )
(18 reviews) Write a Review


This adapter converts tapered SIG rifle barrels to traditional 90 degree shoulders, allowing the customer the ability to then mount whatever market muzzle device product they wish to their SIG firearm. 



  • Made of 17-4 stainless steel
  • Heat Treated to H900 specifications
  • Available in 1/2" hole and 5/8" hole fitment versions 
  • 1/2" is not compatible with 13.5x1 LH barrels 

Additional Details


18 Reviews

  • 5
    Tapered shoulder barrel (SIG)

    Published by Don Shelton on 4th Jul 2023

    Perfect fit. Just what was needed. Thank you for service and expediency.

  • 5

    Published by L Belmont on 12th Jun 2023

    This tapered shoulder barrel adapter is pure perfection.
    Put on my Sig Tread to attach a Micro KeMo break to attach my Wolfman and aligned with zero issues. And the color looks great!
    Fast shipping and a quality item.

  • 5
    Fire and sexy

    Published by Loudog on 29th May 2023

    On sig spear
    Pops real good behind the can for pretty boys only!$!$!$

  • 5

    Published by Jeffrey Denny on 15th May 2023

    Worked great. For adding the deadair muzzle device.

  • 5
    Tapered shoulder barrel (SIG) Adapter

    Published by Dave Ziebol on 10th May 2023

    This is likely the BEST tapered shoulder barrel adapter that you are ever likely to find. The precision Tapered shoulder is perfectly tapered right up to the point on the shoulder where it is no longer tapered precisely! Additionally it perfectly and precisely adapted my tapered barrel into a no longer tapered barrel. I'm very pleased with this purchase and I'm sure you will be also, if you have a tapered shoulder barrel that needs to be untapered and adapted!

  • 5
    Hard to find

    Published by Z5 on 1st May 2023

    Everywhere I looked this was out of stock but then I was lucky enough to find this on a web search. Wow this is nicely built fits perfect and they shipped it quickly. A+ couldn't ask for more! Highly recommend Griffin Armament and will defiantly shop with them again.

  • 5

    Published by Eli H on 7th Mar 2023

    worked as advertised, very happy with product

  • 5
    Great fit

    Published by kerry hendricks on 21st Feb 2023

    Installed on Sig 716 piston barrel, worked great.

  • 4
    Sig sauer Barrel taper

    Published by Craig on 20th Apr 2022

    Fits great. Quick shipping. Only thing I would like to see is it coated black Kinda sticks out unfinished

  • 4
    Tapered Shoulder Barrel Adapter for Sig Vertus

    Published by Frank Secreto on 16th Feb 2022

    Worked as advertised. Wish it were finished in matt black.

Related Products

Customers Also Viewed