It is compatible with my original TM MWS system. I like the engraving and details, and the receiver's metal isn't cheap scrap metal either. Both the selector and magazine release are steel and may show some rust. Overall, it's a satisfying purchase.

Installation requires some skill, and the chamber and hop-up system feature a different design than the original. I recommend this for those who own an EMG T8 or are familiar with it. Particularly, several parts are very stiff and require a hammer and pins. Be careful with the front body pin—once it's in, it won't come out easily.