For some reason I just didn't like the way that comp looked. Never fired it. Sold it to a buddy and just have a birdcage on there for now. Probably stick a vortex or aac FH on there at some point. Just using standard buffers in all my guns. Havnt found any reason to replace them yet.
One thing about that comp...it wouldn't flush up to the shoulder of the barrel. Either had to use a shim, a crush washer, or deal with the gap. I think any .75OD muzzle device should be able to close the gap.