So I knew 30 RAR was based on 450BM but I had assumed that it used the same magazine. Was digging around on the net and found pictures of a 30 RAR magazine an saw just how different it was from a standard AR-15 magazine and even some of the 450BM specific magazines. I was curious if anyone has ever tried a 30 RAR magazine in their 450BM AR? Seems like it might feed better if for no other reason then the edges of the feed lips would not be digging into the cartridge as much.
I borrowed the images from another forum.