The gsg firefly features a wear-resistant alloy frame outfitted with an integrated accessory rail.The slide has an adjustable rear sight, and along with the rugged blowback system, fixed barrel and superior ergonomic grip, the gsg firefly delivers exceptional accuracy.Safeties include an internal locking device and slide-mounted ambidextrous safety.This model has a black finish and 4" non-threaded steel barrel.Frame Finish: BlackType: PistolAction: SA/DACaliber: 22 LRBarrel Length: 4"Capacity: 10+1Safety: AmbidextrousGrips: Black PolymerSight Configuration: Adj RearWeight: 24.60 ozFrame Material: Zinc AlloyBarrel Type: SteelSlide Description: Black Zinc AlloySight Style: AdjustableBarrel Length Range: 4.00" to 4.99"Weight Range: 16.00 oz to 31.99 oz