Bersa Thunder 22 Long Rifle 3.5in Satin Nickel Steel Pistol - 10+1 Rounds. With the Bersa Thunder 22, Bersa delivers a very compact, yet very capable 10+1 capacity .22 caliber semi-automatic pistol. Also, the gun has tightly packed diagonal serrations and a standard hammer. There is a decocker mounted on the back of the slide that reveals an angry red dot when the gun is ready to fire. This slide then mates to an alloy frame.The trigger guard is an upturned oval that points up toward the muzzle even as the back forms a shallow undercut behind the trigger. The front of the guard has a concave serrated surface. The grip is flanked by polymer grips. They are triangular checkered and fastened with just one flat head screw. The grip has a rounded butt mainspring housing. The 10-round magazine has a bottom finger rest thus elongating the room one gets on the grip. For safety, the Thunder 22 has an internal locking system, automatic firing pin safety, magazine safety, manual safety and the decocker lever.