I got the micro in FDE for my 19x MOS. Fit and finish is fantastic. Mounting it up was a little difficult. Seemed like I should have gotten and extra shim kit or maybe they should include two of the smallest shims in the kit instead of one. Now the only complaint I have is just a risk you run with compensators. I have about 400 rounds through it now. Can’t get through a mag of any 115 grain ammo I have without at least 3 failures to feed. I ran 124 grain P Speer and HSTs through it with no issue. I just got in a Radian Compressor guide rod and am gonna try the 15lb spring to see if it works with the 115s. Not a knock on the product though. Just be aware that some tuning may be required