These are the parts for the mechanical 3-rnd burst gearbox from VegaForce Company You can’t really buy spare parts from vfc so this is a gearbox to keep your mp5 in shape (or build a new lower.) Includes the parts as shown im the photo and possibly a few other relevant odds and ends if I find them in the box Included the lower receiver with the baseplate, base plate screws, and motor height screw as well 40 through Paypal goods and services + 5 shipping and fees