Beretta BU9 Nano Beretta BU Nano User Manual - Page 22

Slide catch The slide catch is a lever that holds the slide open after the last round is fired. This allows the user to immediately determine that the pistol does not have a round in the chamber or in the magazine. The Nano's slide catch is internal and completely snag free. OPERATIONAL FEATURES Semiautomatic firing Beretta Nano pistols will automatically reload after each round is fired, as long as there are cartridges in the magazine. Barrel locking system The barrel and slide are locked together as a unit at the time of discharge. As they move to the rear during recoil, the barrel cam operates on the disconnect pin causing the barrel to disengage from the slide and allows the slide to continue its rearward travel. Striker Fired Trigger System When the trigger is pulled the trigger bar rotates the cocking lever to the rear, the cocking lever pushes the striker against the striker spring. Just before full trigger travel is reached, the cocking lever pushes the striker block out of engagement and releases the striker. The striker travels fully forward under inertia. After the striker reaches its full forward position the striker return spring rebounds the striker to a neutral position so the striker block is automatically activated when the trigger is released. 22