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How hard is it to put a big dot night site on the front of my 640-1?
Ashley big dot for 640-1
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robotoid
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Not very hard, you just need the right size drill bits (wire gauge #54 and #55). The new sight may need some filing to fit. I drill mine in place, and put some masking tape on the barrel to prevent any scratches. Drill half way from each side. I used a Dremel to hold the drill, since I did not have a drill press. Search past posts, I personally did not like the Big Dot sight. I am currently using a Hi-Viz Fiber Optic on my 640-1 and a Meprolight on my 340SC.
