SHS internals, 13:1 gears, ZCI 22tpa motor, wired to deans, and shimmed by previous owner. (On an 11.1 it's a little monster, battery stored in body 4 10mm style midcaps "Chopped" handguard, has rail for foregrip. Stockless, but threaded for a buffertube Offer up on a price. Dm for questions. Thanks