The GSG FireFly features a wear-resistant alloy frame outfitted with an integrated accessory rail. The slide features adjustable sights, and along with the rugged blowback system, fixed barrel and superior ergonomic grip, the GSG FireFly delivers exceptional accuracy. Additional safeties include an internal locking device and slide mounted ambidextrous safety. Features Ambidextrous Thumb Safety Double Action / Single Action Excellent training pistol to familiarize with centerfire pistols Specs Caliber: .22LR HV Height: 5.3 Inches Length: 7.2 Inches Weight: 24.6 Ounces Magazine Capacity: 10RND Frame Material: Zinc Alloy overmolded with Polymer Slide Material: Zinc Alloy Sights Adjustable rear sight Grips Black Polymer Barrel Non-Threaded Length: 4 Inches Material: Steel   Limited Lifetime Warranty and Product Return Policy Please Click Link For Further Details:http://www.americantactical.us/warranty.html View Manuals and Exploded Views on Downloads Tab:http://www.americantactical.us/public/files/Manuals/Firefly%20ManualUpload_compressed.pdf Recommended Ammunition: Use only commercial grade ammunition in its original packaging that corresponds with the caliber of the gun.  The correct caliber is imprinted on the gun.  22LR (Long Rifle) High Velocity (HV) with a minimum of 1250 Feet Per Second (FPS) 36-40 grain. Never use reloaded, “refurbished”, hand-loaded or non standard ammunition of a different caliber.  Never use dirty, wet, corroded, bent, damaged or oiled ammunition. Unfortunately, it is not possible to adjust a semi-automatic gun to all loads.