HELP - Tactical silencer thread

[NUTFINN]

.45ACP

- What is it? I know is left handed, but the size and rise?
- Does anybody make a adapter to make it right handed, and maybe to a more common size & rise??

Any help would be greatly appreciated.

[<Mach1]

It's an M16 x 1 LH.
HK designed it that way for the barrel riffling in the USP. The LH thread will help keep your suppressor in place. If you put a RH adapter on it will want to self loosen.
The HK thread is an industry standard so you might want to consider what's currently available first.

[NUTFINN]

Thanks