An internal magazine is a pistol magazine that is contained within the grip and loaded from within the firearm.

Adjustable metal aiming devices on firearms, consisting of a front post and rear notch, used without magnification.

A mounting system for attaching optical sights to rifles.

Firearm mechanism where a sliding fore-end (foregrip) is moved back and forth to eject spent casings and chamber a new round.

Rimfire: a type of ammunition in which the primer is located in the rim of the cartridge case and is ignited by the firing pin striking the rim.