Suppressor Thread Adapters to 5/8x24

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These suppressor thread adapters allow you to convert AK-47 style 14x1mm LH and HK style 15x1mm RH threaded muzzles to receive 5/8x24 threaded accessories. These surplus rifle threads require a muzzle face index for perpendicularity, making them incompatible with muzzle devices that require timing.

The use of these adapters converts these threads to conventional threads with thread shoulders, allowing common muzzle devices to be mounted with timing shims. Provided 3/4" wrench flats permit proper installation torque to be achieved.

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6 Reviews

  • 5
    Fantastic quality!

    Published by Ben on 1st Jan 2022

    My gunsmith was genuinely stunned at how precisely this was machined. Even though my VEPR has bore-concentric threads, he has seen so many adapters of lesser quality throw things off he was expecting to need to chop and re-thread the barrel. Griffin Armament, you have yet again proved your dedication to perfection: great job!

  • 5
    Excellent Fit

    Published by Dennis Fortenberry on 21st Aug 2020

    Great craftmanship

  • 5
    fit & finish

    Published by EdL on 9th Jul 2020

    I was concerned how it would fit, but I found it fit perfectly to my Norinco made rifle allowing a proper fit to my Hybrid-46. Thanks for making this product and paying attention to detail.

  • 4
    Performed as advertised.

    Published by D from east of Dallas, TX on 11th Aug 2019

    I waited to review this until after use. Product arrived on time, as advertised, and packaged securely. I used it on a Yugoslavian M72 parts kit with a Green Mountain brand, US barrel, and a Silencerco Hybrid silencer. No issues, 4 stars because $60 is a lot for a small piece of metal- BUT.. It worked and I didn't have any hassle from it not being correct and testing customer service. Also... In the product purchase comments I asked for extra stickers and they did give me two sheets of stickers.

  • 5

    Published by jeff schulze on 5th Mar 2019

    Came in a timely fashion. Worked perfectly and seems very heavy duty. Perfect....

  • 5
    Simple part, but high quality machining & finish.

    Published by Daniel Pepper on 13th Sep 2018

    This is going on a PTR-91 Century C93 Sporter to adapt a Hammer Comp Taper mount and Recce-7. Haven't mounted it on the rifle yet, but I'm confident of fit & function based on experience with many other Griffin accessories. Looking fwd to shooting a suppressed roller lock with this set-up.

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