I was not happy with the front sight on my 1911-22 so I had it removed. I took it to a gunsmith had a slot machined to accommodate the Colt 1911 Optical sight sold on e-bay. I purchased to .165 optical sight to keep the sight lower on the slide. I then ground the stake in order to allow the barrel to be assembled in the slide. I then glued the front sight into place with top of the line two part metal glue. I am looking forward to taking it to the range.