I would imagine the hardest part will be modifying the magwell to take the Tanaka mags. I supposed you could just modify it to house the Tanaka trigger guard/magwell. I'm currently modifying a real steel Remington box mag to fit in my CA M24 and based on that I can tell you that even high end replicas aren't the same size/spec as real steel parts. It shouldn't be too hard to tap and drill your own holes to mount the receiver/barrel.
I've wanted to do this for a while but I just don't have the funds to buy a real A4 or A5 stock. I'll keep looking around for links and anything else that might help you out. Good luck with the project!
I've wanted to do this for a while but I just don't have the funds to buy a real A4 or A5 stock. I'll keep looking around for links and anything else that might help you out. Good luck with the project!