Arp9 fully upgraded. Only thing that is stock is the hop up unit as this gun was only meant for cqb Parts list Gate titan advance with usb link Shs 13:1 gears Lonex delayer chip Tienly 35k motor Bba enhanced tappet spring Ace1 cylinder Ace1 cylinder head and sorbo pad Shs light weight piston Prometheus pom head Lambda 255 inner barrel M120 spring Gun comes with everything in picture and 2 midcap mags Gun was built by ryan tan if you know you know gun shoots flawlessly. Not accepting any trades other than lmg's of same value. Located in barrie can ship if you pay for shipping