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Old 08-27-2010, 13:09   #2
Zak Smith
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Join Date: Aug 1999
Location: Fort Collins, CO, USA
Posts: 673
As long as the scope and float rail are both mounted properly, you only need enough clearance so they don't touch. 1/10th inch is fine. Note that on an AR-15, you need rings with approx 1.4-1.6" rail to scope center height for proper mount height. When the scope is rigidly mounted the rifle moves as a whole unit.

Last edited by Zak Smith; 08-27-2010 at 13:09..
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