Bullpup

Bullpup

"Bullpup" describes a modern firearm configuration in which the action is located behind the trigger group and alongside the shooter's face, so there is no wasted space for the buttstock as in conventional designs. This permits a shorter firearm length for the same barrel length for improved maneuverability, and reduces weight.

Origins of the term "bullpup" for this configuration are unclear. The word is reported as being used in the US in 1957 to denote a target pistol, particularly one with a fancy stock.