These compensators are specifically designed for the XDm
to work with factory ammunition and a reduced power recoil
spring. Made from 7075 aluminum Class III, hard anodized
for a light weight, long lasting compensator to tame
muzzle flip and soften recoil. 1/2 x 28 tpi requires .4
to .5 of threads for 9mm.
When installed correctly, there will be a 1/4" gap between compensator and the slide.