M4 Muzzle thread adapter

M4 Muzzle Thread Adapter

SKU:
A02000
$22.99 - $29.99
(11 reviews)
Current Stock:
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DESCRIPTION

Ideal for attaching our 5/8-24 threaded M11 and M41 Severe-Duty™ Muzzle Brakes to your 1/2-28 or 9/16-24 threaded barrel, as well as mounting suppressors and other alignment critical muzzle devices. Wrench flats on shoulder make installation and removal for use on multiple devices simple and easy. Both Internal and external threads are single point cut in same operation to tight UNEF Class-3 tolerances for perfect concentricity and alignment. Compact design moves muzzle device only .100” forward maintaining full thread joint strength. The M4 muzzle thread adapter is precision CNC machined from pre-hardened HTSR 400-series stainless steel bar for superior heat and corrosion resistance.

Available in an advanced PVD (Physical Vapor Deposition) matte-black finish, offering exceptional durability and corrosion resistance at high temperatures, making it ideal for full auto fire as well as suppressor applications. Also available in matte stainless finish.

1/2-28 Barrel Thread Adapter: Perfect for attaching any 5/8-24 muzzle device to the standard 1/2-28 AR-15/M16 barrel thread.

9/16-24 Barrel Thread Adapter: Ideal for attaching 5/8-24 muzzle device to the 9/16-24 threaded barrel on most 6.5 Grendel's.

NOTE: The shoulder of the M4 Muzzle Thread Adapter will be visible after installation.  If you need an adapter that is completely concealed please see our M4 Shoulderless Thread Adapter.   

SPECS
External Thread: 5/8x24"
Internal Threads: 1/2x28
9/16x24
Length: 0.625"
OD: 0.825"
Flats: 0.750"
Weight: 0.24 oz
Full Spec Sheet: View PDF

RESOURCES

For full specifications, installation manuals, and more - visit our Technical Resources page:

Description

Reviews

  • 5
    Threaded Adapter

    Posted by Marty G on 25th Sep 2024

    Exactly what i was looking for, gives me some flexibility on moving cans.

  • 5
    1/2 to 5/8

    Posted by Charles on 12th Sep 2024

    I bought these so I could adapt 3 ARs to mount suppressor that used a attachment that is 5/8 thread. I also bought the shim pack to assure correct alignment. I had all three done in a hour. Thanks guys

  • 5
    THREAD ADAPTER

    Posted by MIKE SAYLOR on 7th Sep 2024

    We use these in our gunsmith shop all the time when the barrel's O.D isn't enough for the suppressor's thread. As long as you thread the muzzle correctly these adapters will be true every time. Or if you just need to take 1/2-28 to 5/8-24. They are the best on the market!

  • 5
    M4 Thread adapter

    Posted by R&M Firearms on 19th Jul 2024

    The only thread adapter we use, have tried most and find these are the best for us.

  • 5
    Great product

    Posted by Evan on 3rd Jul 2024

    This adapter was a perfect fit for my AR muzzle brake and shipping was extremely fast I Highly recommend

  • 5
    Nice adapter

    Posted by Micah on 13th May 2024

    These adapters are nice and low profile. They do not stick out past the crown on standard length threads.

  • 5
    WORK PERFECTLY

    Posted by LANE LLC on 25th Mar 2024

    I have purchased a lot of these adapters and they just plain work.

  • 5
    Great Product

    Posted by Jim Engel on 25th Mar 2024

    We have used dozens of these 1/2 to 5/8 adapters and have never had a problem with these. If you need an adapter, this is it. They are precision made.

  • 5
    Muzzle thread adapter

    Posted by Tipton Burns on 27th Nov 2023

    I use these all the time and have never had any problems or issues with them. Consistently on the money.