If you have been looking for an XM8 AEG, you'll have to find the SRC XM8 XR8 AEG. It is the best XM8 in the market and this uses a Version 3 Gen 2 gearbox with 8mm bushings and reinforced steel gears. Like the G36K, it comes with its own scope. Mach Sakai checks it out for externals, operations, and performance in this quick video review.