Yes it is in working order, It has never seen the field so is in pretty much new condition. It hasnt seen the field and only about 50 shots indoors to try it out so no, would not need new seals. Have had it for a couple of months, less than half a year id say?I am interested as most of the mods would be good for what I want to do to it and would save me the time getting all the bits separately. Is it in working order? Does it need new seals? How long has it been under work as a project?