Finals at Luger University - LugerForum Discussion Forums

05-18-2016, 12:22 PM

alanint

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Location: Marco Island, Florida

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Quote:

Originally Posted by siegersallee

Let me show my ignorance: What is a tuning fork test?

The stripped upper receiver forms a "tuning fork" that when gently tapped on a non-marring surface, will ring. Repaired, re welded, cracked or messed with upper receivers are not supposed to "ring".

This is more lore than science, but some people do it.

Last edited by alanint; 05-18-2016 at 01:18 PM.

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