Lancer Tactical share what they think about the SIG Air ProForce MCX Virtus AEG in this video from their official channel. The ProForce MCX AEG is a highly realistic replica of the Sig Sauer MCX Virtus. With its full metal construction, authentic trademarks, and customizable features, it can a true-to-life training experience. Powered by an M120 spring and high-torque motor, it can deliver impressive performance and ready to go action straight out of the box.