Wow, didn't get much help here did ya? Check out forum.Saiga-12.com
I did a conversion on my 7.62x39. The process is very similar (if not identical). It's not difficult at all. You can get away with just having a drill and a cold chisel, but other tools will make life a little easier (i.e. dremel tool). You can use any type of AK grip you want. I don't know if the shotguns apply to 922r compliance, but definitely read up on it (especially if you don't know what that is to begin with). Again, all that info can be found on the saiga forums. The conversions are amazing. I'd love to do a 12g before too long.
I can't imagine recoil is too bad- just about every semi out there is gonna have less recoil than a pump (with the exception of adding a specops stock). I personally wouldn't go the 410 route cause ammo is insanely expensive (typically double what 12g is most places). Good luck!
Edit: a quick look on the saiga forums, the shotguns also fall under the compliance laws. Basically you need to make sure you replace a certain number of parts with American made parts. It's all under the compliance section. Read and read again. Join up and ask questions there till you know the law backwards. Stay legal.
I did a conversion on my 7.62x39. The process is very similar (if not identical). It's not difficult at all. You can get away with just having a drill and a cold chisel, but other tools will make life a little easier (i.e. dremel tool). You can use any type of AK grip you want. I don't know if the shotguns apply to 922r compliance, but definitely read up on it (especially if you don't know what that is to begin with). Again, all that info can be found on the saiga forums. The conversions are amazing. I'd love to do a 12g before too long.
I can't imagine recoil is too bad- just about every semi out there is gonna have less recoil than a pump (with the exception of adding a specops stock). I personally wouldn't go the 410 route cause ammo is insanely expensive (typically double what 12g is most places). Good luck!
Edit: a quick look on the saiga forums, the shotguns also fall under the compliance laws. Basically you need to make sure you replace a certain number of parts with American made parts. It's all under the compliance section. Read and read again. Join up and ask questions there till you know the law backwards. Stay legal.