a firearm replica includes a removable magazine having a case that contains projectiles such as small light balls . the balls are usually made of plastic . a frame of the firearm includes a substantially elongated part having a barrel for ejecting the projectiles , a part bent downwards acting as a grip and a receptacle for receiving therein the magazine . the elongated part contains a mechanism for ejecting the projectiles and an actuating mechanism connected to a trigger , and a breach mounted longitudinally mobile on the frame elongated part for loading a projectile in the barrel and cocking the ejecting mechanism . the firearm further includes integrated controls for immediately finding the location of a projectile which may have been blocked in the breech and / or in the frame .