Modern action air pistol design is captured in the Umarex SA10 air gun. It features a fully functioning blowback action, meaning it physically cycles or moves with every shot fired. The dual ammo SA 10 air pistol fires either .177 caliber BBs or .177 caliber pellets up to 420 feet per second with excellent accuracy due to its rifled barrel. This Umarex gun is unique from other BB guns in a couple of ways. First, its airgun magazine holds both the 12-gram CO2 capsule (NOT included) and an 8 round rotary clip and it also holds three additional clips that makes fast target shooting more fun. It also has a slide with openings on the sides to reveal a gold-look barrel, a look that's unique to the Umarex line. The SA10 has an integrated accessory rail and tactical sights that round out this handsome air-gun.