Built to look and feel like the real thing, the Barra Airguns Black Ops 357 CO2 BB Revolver is a smooth-shooting, double-action BB revolver that delivers the look and heavy feel of a true .357. A .177 caliber BB gun, this all-metal design features a contoured polymer grip with finger grooves so you can practice with the true feel of a .357 while shooting inexpensive BBs. Adjustable rear fiber optic sight and bladed front sight help improve your accuracy. Realistic revolver design features an authentic 6-shot cylinder and contains its CO2 cartridge inside the grip. Integrated top Picatinny rail allows you to add an optic or laser device. BB revolver with the look and heavy feel of a true .357 revolver CO2 powered All-metal design with smooth-shooting, double-action Polymer grip with finger grooves Adjustable rear fiber optic sight and bladed front sight Authentic 6-shot cylinder CO2 cartridge is contained in the grip Integrated Picatinny accessory rail