The price is $470 obo because there is a mosfet installed, a tbb barrel installed, and the box mag has been modded with a pressure switch. I have added a replica eotech, and fake chained bullets for realism. This gun shoots great with an 11.1, very stable and beefy rof. A good 200+foot gun, even with .20 but I recommend .28 and up. Hopup is adjustable. This gun does accept m4 style low, mid, and hi capacity magazines. Even drum mags for m4's. The box mag is powered by 2 double a batteries, and runs great Trades would be gbbrs, hpa, but no other lmgs please. Just looking for a solid primary. Will throw in vfc fnx-45 or vfc m&p9 to level out the deal if it's a trade Shipping is included into price