Mk18 build that has been completely built. Very snappy Lonex gearbox with 12:1 gears Gate Titan (semi locked) Prowin Hopup Adjustable Maxx trigger Channeled Buffertube to fit large battery High torque motor Functional peq box Bem grip Mock suppressor Last chronoed at 390-400 fos I have a bunch of mid caps I can throw in as well. EOTECH is cracked NO TRADES (unless your trading a fusion engine)