I went searching for an inexpensive tool for adjusting the rear sight on my SR1911. Not to be found, cheapest one I could find was $50, and you need to use a 3/4 in. wrench on the nuts. Did read a thread though, on another forum, about using a spring loaded center punch. The fella filed down the tip flat, slid a spent .22 shell casing over the tip for protection. Held the slide firmly, and pressed the punch against the side of the sight, wait for the snap, sight moved. Sounds good on paper, but does it work? Anyone out there ever tried it? Snap-on tools has adjustable spring rate on theirs, so you can get a heavy tap or a light tap. Maybe all spring loaded center punches are adjustable, don't really know. Think it might work? I just can't justify the price they ask for the adjustment tool, won't use it that often.