The double action trigger of the Gamo P23 allows fast, rapid fire fun plus with the twelve shot, BB magazine you can get off 12 shots in only 2.4 seconds. If you are in need of extreme accuracy the Gamo P 23 will fire a single shot .177 caliber pellet. The P 23 also features rifled steel barrel, contoured plastic checkered grips, rear sights that are adjustable for windage and muzzle velocities of up to 410 fps so it's perfect for both indoor and outdoor shooting.