1) Firearm action
Found on
https://www.crosswordclues.com/clue/hammerless
A hammerless firearm is a firearm that lacks an exposed hammer or hammer spur. In rifles, using a firing-pin rather than a hammer is a substantial improvement because the time from trigger pull to firing can be less. This makes the rifle more accurate, because the rifleman`s muscular tremors have less time to move the rifle off-aim. One of the di....
Found on
http://en.wikipedia.org/wiki/Hammerless
A firearm with a coil-spring-actuated firing pin, or with its hammer enclosed inside the action body; i.e.. no externally visible hammer.
Found on
http://www.hallowellco.com/abbrevia.htm
No exact match found.
