Had Kurts Kustom remove the mini y-comp and turn the M4 barrel to lightweight profile, all I can say is outstanding workmanship, it's perfect and I'm a picky bastard.

IMHO the lightweight profile changes the handling of the gun for the better, it now has a perfect balance.

The A3-Limiter/Hybrid brake is the most interesting part of this project, it is a substantial improvement over the Y-comp, like so many other people who complain about noise and blast, the design of Limiter/Hybrid directs the blast away from the shooter and provides control and staying on target while rapid firing, I was impressed by it's function.

You can see what this looks like, www.kurtskustomfirearms.citymax.com/albums/album_image/42611/92541.htm