Purchased this after getting burnt by the aluminum compensator sold by "HK Parts" - their part was out of spec and bullets were actually hitting the compensator on their way out the barrel. Because it was now "used" they wouldn't return - stuck with a $300 paperweight. I also didn't like how the only point of securing to the frame was via the hole in the plastic trigger guard. Compensator by Match Weight is completely different - rock solid sandwich-type mounting: mount comes apart in two for mounting via two side screws that screw into the opposite side of the steel compensator. Very impressed with quality and sturdiness of mounting. Now I just have to see how she shoots!

I have 4 2 for my custom mk23 that can shoot 450 AMC 45 super or standard then two for for custom set of twins left and right . With my 10mm I can hit 6 inch at 200 yds with these I can shoot all day with in 100 yards and it's dead on takes an enormous amount of shock from your wrist . Also prevents someone or thing from bumping slide out of battery.
I cant wait untill the fnx 45 tactical comes out I'll need 2 and 2 black . Hoping soon the walther ppq 2 navy 45 comes out . Hope enough still shoot 357 sig so one can be made for p229r

I recently purchased the railed version for my MK23. It really turns the pistol into a showstopper. I couldn't be happier. Quick delivery and the craftsmanship is top notch. The already smooth shooting MK23 now shoots faster and flatter.