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Glossary Results

ULLAGE

See Air Space.

UNDERBOLT

The moveable lock of some break-open firearms. It normally engages the barrel lug (underlug) and is actuated by the top lever.

UNDERLUGS

The downward projecting lugs at the breech end of a break-open firearm used for locking and barrel positioning in the frame. Also called Lumps.

UNIVERSAL RECEIVER

See Receiver, Universal.

UNLOAD

1. The complete removal of all ammunition from a firearm and it’s magazine

2. Disassembly of a cartridge or shell.

UNSERVICEABLE

A firearm which, for any reason, is no longer fit for firing.

UPSET FORGING

See Forging, Upset.

Abbreviations:

A-L | M-Z