Bullpup

A bullpup is a firearm with its action behind its trigger group. This configuration permits a shorter overall weapon for a given barrel length. This maintains the advantages of a longer barrel in muzzle velocity and accuracy, while improving maneuverability and reducing weight.

The origin of the term "bullpup" for this configuration is unclear. In 1957, the word was reported to denote a target pistol, particularly one with a fancy stock.

Description

The bullpup design places the gun's action behind the trigger, usually in front of a short buttstock. The entire magazine is often also located behind the trigger group, though it is only necessary for the weapon's feed location to be located there for it to be classified as a bullpup; in some designs such as the Heckler & Koch G11 and Neostead the magazine or magazines extend forward rather than downward.

The configuration decreases the firearm's length and weight while retaining the same barrel length. Bullpups generally allow for a 25% reduction in weapon length, which allows for better maneuverability in confined spaces.