SHOULDERLESS THREAD ADAPTER 1/2-28 TO 5/8-24 Reviews & Ratings
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.
Suppressor ready
It is concentric enough that I ran my dead air muzzle device with my sandman k. Loved the seamless fit.

