RFI - Holosun 407k/507k measurements

I am looking for a couple of measurements off of a Holosun 407k/507k if someone would oblige me.
Overall length, and the distance from the mounting screw holes to the back of the optic. Preferably from the back of the screw hole to the back of the optic.

Thanks in advance.

I have a 407k on a P365X slide. How precise do you need the measurement? I’m not near my calipers at the moment, but I might have a mm tape measure?

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Originally Posted by RJ

I have a 407k on a P365X slide. How precise do you need the measurement? I’m not near my calipers at the moment, but I might have a mm tape measure?

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If you will be near your calipers soon I would prefer thousandths, but beggars can't be choosey.:D

Quote:

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Originally Posted by cornstalker

I am looking for a couple of measurements off of a Holosun 407k/507k if someone would oblige me.
Overall length, and the distance from the mounting screw holes to the back of the optic. Preferably from the back of the screw hole to the back of the optic.

Thanks in advance.

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This kind of measurement really has to be done with the optic not mounted to get cleaner measurement of the actual hole.

Front to back, note that the surfaces are curved.

Attachment 88723

Rear edge of screw hole to the back. Measured underside.

Attachment 88724

And in case you want to center the hole, here is the front edge of the hole to the rear of the optic.

Attachment 88725

Thanks, @JCN
That'll do it.