| Term |
Definition |
| Parabellum |
The pistol, and especially the 9 x 19 mm cartridge for it, designed by George Luger and adopted by the German army in 1908. |
| Parallax |
Parallax is the apparent position of the reticle on the target image at different ranges. |
| Peep Sight |
A type of gunsight, mounted towards the rear of a rifle through which one simply looks, placing the front sight on the target. |
| Pistol |
A pistol is a usually small, projectile weapon, normally fired with one hand, for personal use in short-range action. There are three main varieties of pistols: automatic, semi-automatic or single-shot hunting or target pistols. Automatic and Semi-Automatic pistols use the recoil or gas energy of each round to cycle the action, extract the spent case, and load the next cartridge. Single-shot pistols are loaded manually via the breech, either from a small magazine or by hand. |
| Pistol Grip (PG) |
Full Pistol Grip, is the portion gun that is held by the hand and orients the hand in a forward, vertical orientation, similar to the position one would take with a conventional pistol. |
| Ported |
Small holes in the barrel of a gas-operated firearm through which expanding gases escapes. |
| Power |
The power of the scope is the same as magnification. |
| Primer |
A small capsule of soft metal containing a detonating compound, press-fitted into the head of a cartridge. |
| Pump Action |
A rifle or shotgun action in which operation is by backward and forward movement of the gun's forearm; also called slide action. |
