2 year old AM-013. Super sweet gun, just have the itch for a MK18. Upgraded motor, gears, bearings, & sorbo all done by a great tech. Also has the barrel stabilizer. Shoots best with an 11.1 lipo (not included). I also have another spring in case you need to decrease FPS for indoor. It drops it down to about 330 FPS. Light in pictures not included.
FPS (w/ .20g BB): 380