Firearm action

In firearms terminology, an action is the system of operation that the firearm employs to seal the breech (in a breech-loading firearm), and to load consecutive rounds. Most commonly this is accomplished by means of a breech-block, which reciprocates in the receiver of the firearm. Important factors in the naming of a particular action type depends on how it gets its motive force (i.e. what energy is employed to operate), and how it locks the breech.

Related Topics:
Firearm - Force

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The following list shows most of the various types of breech-loading firearms that exist:

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