action, trapdoor

A trapdoor action is a gun design where the breech block is hinged at the top and pivots forward to unlock.

aka:

    • cam lock

guns that use a trapdoor action:

 

Footnotes / Sources:

“Glossary ⇒.” Sporting Arms and Ammunition Manufacturers’ Institute. Ed. SAAMI’s Technical Committee. Web. 15-18 Jan. 2011.

 

Question:

      • Do you know of a gun that uses a trapdoor action that is not on the list?

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