AR15 muzzle device on HK MR223

From time to time I get asked about how to mount AR15 muzzle device (1/2"x28tpi thread) on HK MR223 rifle (M15x1 thread).

Basically there are 3 solutions that do not include messing with barrel on HK MR223:

1. Get muzzle device with M15x1 thread straight from manufacturer.
2. Re-thread muzzle device from 1/2x28tpi to M15x1
3. Make screw on adapter that is female M15x1 thread and male 1/2x28tpi thread.

I tried all 3 solutions, so decided to share from what I learn.