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  1. USAONEx

    590A1 Front sight replacement

    Like others I had trouble with my Blackwater 590A1 shooting about a foot low at 25 yards, I have the XS Ghost ring rear with the ,400 front blade on the high front mount, I was afraid it would be a tIght fit but after I removed the set screw I was able to remove it by hand, After cleaning the...
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