The breech of a gun is located at the end of the barrel and is where the load is loaded. This is where the powder and ball are found on a loaded cap and ball firearm, and where the cartridge is found in a cartridge firearm.
The entry point for paintballs on the gun. The breach sits just above the firing chamber so that paintballs can be staged with out jamming. Indian Creek Design uses a Power Feed gravity system developed by Airgun Designs, to keep your paint flowing without the hassle of jams or chopped balls.
That portion of a gun which contains the action, the trigger or firing mechanism, the magazine, and the chamber portion of the barrel(s). An imprecise term generally including all the essential working parts of a gun.
The immediate housing for a bullet / BB at the point of firing The Breech is usually a solid object with a hole cut out in line with the barrel to fit a bullet or BB inside. The projectile waits in the breech until the firing pin / piston causes the shot to be fired. It is then launched out of the front of the breech, in to the barrel and out of the front through the muzzle.