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Old December 8, 2019, 03:26 PM   #10
Join Date: March 18, 2014
Posts: 74
Originally Posted by T. O'Heir View Post
All those dimensions, threads included, are measurable. Your local smithy will have the tools.
"...guess it’s a .05”..." Guess again. 50 thou is very, very small. A National Match M1 Rifle front blade is 62 thou wide as something to compare.
The peep without the disk is already bigger. Looks like it's 1/8"(.125") at a guess.

No. The aperture is .050”. I can fit a large paper clip through the hole that I measured to be .044. And my front sight post is at least .100”, hard to get the jaws of the caliper between the protective ears.

The mount for the aperture is 7/32” (0.218”), the diameter of the aperture shank.

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