Umarex Air Gun Tac Carbine .177 BB What Do You Get When You Combine The Umarex TAC Converter And An Umarex XBG? A Tactical Carbine With a Folding Fore Grip And Folding Butt Stock. Add All kinds Of Accessories To Its Plentiful Tactical Railing Before pulling The Trigger On This Pistol Conversion That Holds 19 rounds In Its Drop Free Magazine. Specifications: - Product Group: Air Pistols - Brand: Umarex - Velocity (Fps): 410 - Caliber: .177 (4.5mm) - Ammo Type: Steel Bbs - Fps W/Alloy Pellet: 410 - Fps W/Lead Pellet: 41 - Barrel Length: 4.25 - Total Length (inches): 14 - 22.5 - Capacity: 19 - Action: Double Repeater - Power: Co2 - Trigger Action: Double Manufacturer: Umarex Model: 2254824 SKU: MS_U2254824