Yup, you guys are right: the internals are the same
That F91 part is just hard to see, so I overlooked it on my first inspection.
I still have not found the time to reinstall the Lonex parts, but I will attempt it later this week. I have to do something, because this damn thing is STILL not firing correctly. The BBs fly anywhere but straight, and it still has a double-feed problem (although it is no where near as bad as before). The range is poor as well...my KWA g36c easily beats it for distance and accuracy.
Lesson learned: stick with KWA! Lol