TM Gearbox in SRC Mp5 body?

[Coski]

Hi everyone.

I own a TM MP5. Hop broke on it recently. Managed to source an SRC steel MP5 complete reciever, handguard, stock, hop up, and inner barrel to stick on there, as I think the TM MP5 externals are shockingly bad quality.

Anyway, went to fit them, and the gearbox appeared to slip in nicely enough. However I cant fit the lower reciever...theres always a 2 mm gap between the upper and the lower, and you can see the bodies arent aligned as the holes for the body pins arent lined up. Ive checked the motor wiring to see if thats bunched up, but its not...is it just a simple case of the TM gearbox and SRC body not being compatible?