SR47?
 

So i picked up an SR16 with a broken body and i was wondering about the SR47 body. I only have 1 mag for the gun because i just got it so theres no issue with that.
My real main question is do i have to get a different hopup assemble because of the different mag or is it just a different body and everything else is stock?

Thanks

If you're talking about this: http://www.wgcshop.com/pcart/shopper...tm=HE-KIT-SR47
You can see it comes with its own hopup unit, along with mag catch etc, and even a barrel and a RAS unit.