450 Bushmaster Follower

thingiverse

I'm working on modifying a standard AR15 magazine to accept a 450 bushmaster round. The design is based on the magazine found at cheaperthandirt.com, and so far, it's performed flawlessly after firing twenty rounds without any jams. I can't vouch for its reliability with other users, though. Due to the curved shape of the magazine, it only holds five rounds reliably. I've developed a round limiter that I'll share later. As for compatibility with 50 Beowulf rounds, I haven't tried it yet, but it should work.