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SHOULDERLESS THREAD ADAPTER 1/2-28 TO 5/8-24 Reviews & Ratings

Machined from pre-hardened, stainless steel bar stock, this shoulderless thread adapter permits muzzle devices to sit tighter against the barrel shoulder and maintain full thread joint strength. Adapter screws fully into muzzle device, giving it a more streamlined appearance when fitted onto the barrel and ensuring a more accurate alignment to bore. All threads are single point cut in same operation to tight UNEF Class-3 tolerances for perfect concentricity and alignment. Allows attachment of 5/8-24 muzzle devices to a 1/2-28 threaded barrel. Matte stainless finish.

SPECS: HTSR 416 stainless steel, HRC 26-32 hardness, matte finish. 5/8" (1.6cm) long. 0.2 oz. (5.7g) wt.

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Perfect

The adapter was perfectly cut and fit perfect on the thin profile of the ruger MK II stainless barrel. I used a jam nut to tighten the suppressor against it.

by Isaac on November 06, 2024

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Suppressor ready

It is concentric enough that I ran my dead air muzzle device with my sandman k. Loved the seamless fit.

Perfect

Using this Shoulderless thread adapter makes for an unbroken and pleasing look to the muzzle of the barrel thus only you know it's even there.

wrong thread size

The outside thread of 5/8-24 is a course thread and does not fit into a Clark compensator they use fine thread.