Sig Sauer Airguns AIRPFMCXAEG: Modeled after its real steel counterpart, the ProForce release of the SIG Sauer MCX Virtus Airsoft AEG (Auto Electric Gun) Rifle does not disappoint. With a Full CNC machined receiver, integrated M-LOK handguard, 3-position telescoping stock, open full-length picatinny rail for the addition of sights, and a modular locking accessory mounting system. The MCX Virtus is an airsoft BB slinging brute with 120 round mid-cap magazine that keeps you active and engaged on the firing line. *Please Note*- Velocity obtained with 0.20g BBs>- For Best results use 11.1V Lipo battery and appropriate charger.- 11.1V Lipo battery is the maximum battery compatible with this rifle.