I bought one of those to go along with my very early Mini-14 back inn the Dark Ages. I got it to shoot as well as the rifle was capable of (2-3MOA) by tightening everything down until I thought it was going to break. I also drilled and tapped another hole in the front of the rail so I could apply more force to hold it in place using a longer screw.

It would still change zero over time, so I took it off and sold both it and the Mini-14 to another geek at a gunshow.

Ed

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