Trunnion

Trunnion

A cylindrical protrusion used as a mounting and/or pivoting point. On firearms, the barrel is sometimes mounted in a trunnion, which in turn is mounted to the receiver.

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Part of Speech: noun
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Industry/Domain: Military
Category: Firearms
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Related terms

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trigger guard

Military; Firearms

The loop shaped construction that encircles the trigger. Usually extending from the receiver and connecting again to the firearm at the grip. The purpose of the trigger guard is ...

chamber

Military; Firearms

The cylinder in which ammunition is fired from. The cylinder in most firearms is directly connected to the barrel and holds the cartridge in place as its primer is struck by a ...

take-down pin

Military; Firearms

In the field of rifles, take-down levers and tabs are rare and most rely on proprietry disasembly methods. One of the most popular methods for adding a quick disassembly function ...

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take-down lever

Military; Firearms

When dealing with small arms that use a lever in the operation of field-stripping, the term 'take-down lever' is used. It describes the wing of metal attached to a pin which ...