I have a bore up I couldn't use and an extra gearbox I'd like to unload. The gearbox is just the gearbox and the whole trigger assembly with the selector plate. It came out of an MP5. I'm looking for something in the neighborhood of $35 for the bore up and $20 for the gearbox. I'd be willing to trade stuff for either a decent crane stock or some P90 stuff. I'm also interested in a G36 and would throw in some cash to meet the trade. A boneyard G36 is fine as well as long as the body is solid.