The GSG FireFly is a compact, semi-automatic rimfire pistol chambered in .22 Long Rifle (.22 LR). Manufactured by German Sport Guns (GSG) and imported in the U.S. by American Tactical, the FireFly is based on the design of the discontinued SIG Sauer Mosquito and is intended for target shooting, training, and recreational plinking. Key Features Caliber: .22 Long Rifle (.22 LR) Action: Blowback-operated semi-automatic pistol Trigger System: Double-action/single-action (DA/SA) Magazine Capacity: 10-round detachable magazine Barrel Length: 4 inches (standard model) Weight: Approximately 24.6 oz unloaded Overall Length: About 7.2 inches Frame & Slide: Lightweight zinc-alloy construction with polymer grip panels Safety: Ambidextrous manual safety, magazine disconnect safety, and integrated key-operated safety lock Accessory Rail: Built-in rail for mounting lights or lasers Sights: Adjustable rear sight with interchangeable front sight blades Threaded-Barrel Versions: Available on certain models for use with compatible accessories where legal.