QUOTE (Raven Wood @ Jan 27 2012, 02:11 PM)
You might find faster and better answers in the AEG section of the forums.
G&G makes awesome quality products so you should not have a problem with the durability of the MP5. Pneumatic blowback isn't as great as GBB but it is still a nice feel. As for the grip, it might be compatible, your best bet would be to contact AA or ASGI and ask.
Thanks for the input!