Pin & Weld Integral Brake Mounts




These integral single port brake direct thread mounts are designed specifically for pinning & welding suppressors to short barrels for “one stamp” rifles.

Made from 17-4 H900 stainless steel, they offer additional protection over a simple direct thread mount for your blast baffle on a permanently mounted suppressor, and are “featureless” on the back end for a clean, OEM look when installed.   They have a .4″ long “tail” to provide plenty of real estate for pinning, which is of typical AR barrel diameter for the most seamless look possible in the majority of applications.  These will extend .5″ behind the rear face of the suppressor, making a 6″ can long enough for “one stamp” rifles with 10.3″ or 10.5″ barrels.

One lightening hole has been omitted to provide a place for a pin through the side of the suppressor into the mount for those who are unable to or do not wish to perform a full circumference fusion weld.

To properly install these, you will need a collet fixture, jaw chuck fixture or some other means of securely holding a round part with no tool features.

Full circumference fusion welding should only be done with a TIG machine (or laser) by a competent operator.  We recommend 3 tack welds 120° apart, then rotating the can at approximately 2.4 RPM (11.3 inches/min) and around 45 amps power setting for TIG, but every machine behaves a little differently, so know your set up.   Too much heat input from high amperage or insufficient surface speed may cause distortion and/or “pulling” that results in axial misalignment.

We do offer pinning & welding services, refinishing services, and can weld the mount into most steel or stainless steel bodied suppressors.  Please contact us if you would like to know more about this service.  Titanium suppressors will need to have the mounts pinned & welded into them until we’re able to get titanium versions made.

Material: 17-4 H900 stainless steel

Overall length: 1.15″

Flange thickness: .1″

Flange diameter: 1.5″

Tail diameter & length: .715″ x .4″

Protrusion into Blast Chamber: 1.06″

Weight:  5/8-24 Bravo 2.8 ounces, 1/2-28 Bravo 3.3 ounces

External thread: 1.375-24Bravo (HUB)

Exit Aperture Size: 1/2-28 .280″, 5/8-24 .340″


In stock Natural finish adapters ship 1-2 business days.  Other color options add up to 10 business days.

Additional information

Weight 6 oz
Dimensions 4 × 4 × 4 in
Muzzle Threads

1/2-28, 1/2-28 Blem, 5/8-24

Moly Resin

Foliage Green, Light Grey Flat, Natural 17-4 H900, Burnt Bronze, Coyote Brown, Tan FDE, SOCOM Black, Grey-Black Colt Flat, OD Green, Flat Brown

1 response to “Pin & Weld Integral Brake Mounts”

    July 29, 2023
    Perfectly concentric on a KAK x39 barrel, couldn’t ask for more

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Pin & Weld Integral Brake Mounts
Pin & Weld Integral Brake Mounts
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