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Old 07-28-2020, 02:18 AM
Hondo44 Hondo44 is offline
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It depends on the vintage style of the sight:

Pre war sight tang front attachment screw - .074 x 64 = close to a #2 (same pitch but diameter can vary).

Post war Micro click sight tang front screw size = #3 - .096x 56 - drill size #45 for tapping the hole.
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Last edited by Hondo44; 07-28-2020 at 09:21 AM.
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