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

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
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