SIG Sauer MCX Virtus Airsoft AEG Rifle AEG (Automatic Electric Gun) All-metal receiver and handguard Uses 6mm airsoft BBs Select fire (safe, semi-automatic, automatic) 120-round mid-cap magazine Adjustable hop-up Adjustable spring Max. velocity (.20g plastic airsoft BBs): 400 FPS w/120 spring, 350 FPS w/100 spring Plastic buttpad Textured pistol grip Full-length Picatinny optics rail M-LOK handguard 3-position push-button telescoping stock Quick-disconnect sling mounts on stock, receiver, and handguard Uses one 11.7V LiPo battery (not included) and charger (not included) Weight: 7 lbs. Overall length: 29"