Sig Sauer Proforce MCX Rattler 6mm BB Air Rifle - The SIG Sauer ProForce MCX-Rattler is a compact, CO2-powered 6mm airsoft rifle built to replicate the look and feel of the 300 Blackout MCX Rattler. It features a select-fire trigger group with semi-automatic and full-auto modes, an ambidextrous selector, and a full-size 30 Round magazine that holds (2) 12g CO2 cartridges. An M-LOK accessory rail and a full-length Picatinny optics deck make it easy to customize, and the receiver is SIG AIR Reflex Sight ready. It suits both realistic training and airsoft field play. Caliber: 6mm airsoft BB; Power Source: Dual 12g CO2 cartridges, housed in the magazine; Muzzle Velocity: Up to 350 FPS with a 0.20g BB; Firing Modes: Semi-automatic and full automatic; Capacity: 30 Rounds; Controls: Ambidextrous selector; Rail: M-LOK accessory rail and full-length Picatinny optics deck; Optics: SIG AIR Reflex Sight ready; Color: Black;