Selling off my tech projects. Looking to move on Parts for nearly 2 complete guns just missing outer barrel and rail for the second and some small pieces / tuning First gearbox has qcs feature and a microswitch trigger. The piston is stripped Second is a modified krytak shell with helical torque up gears and a half tooth piston. Both are SS 2 teeth Both gearboxes could use some work, but the second does run Both bodies are metal and have most every part needed. Notable missing would be grip screw and 1 mag release spring as well as the mock bolt catches Bag of parts has various internal parts. Call it a bonus freebie