Butt plate definitions

Butt Plate

The end plate of a structural member usually used to rest or butt against a like plate of another member in forming a connection. [] [C]
Found on https://www.encyclo.co.uk/local/21107

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butt plate

a protective plate on the butt end of a gunstock, usually of metal.
Found on https://www.infoplease.com/dictionary/butt-plate

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