DURAMAG has solved the geometry and durability problems of putting straight-walled, big-bore rounds in a magazine designed for smaller, tapered cartridges by simply not doing it.  Unlike other stop-gap solutions such as after-market followers or springs, the new DURAMAG .450 Bushmaster is a complete solution designed from the ground up to properly support the round in a magazine that fits into the AR15 magazine well.

Until now the challenge has always been the magazine. While originally intended to fit a standard AR15 magazine, improper geometry and follower design has led to feeding issues and rifle malfunctions.   Some home-remedies worked, but the unique stresses caused by this load typically deformed the magazine after just 10-20 cycles. Thousands of rounds from a single magazine of in-house and third-party testing by firearms manufacturers have confirmed DURAMAG is the answer.  An advancement in magazine design and construction has made this possible.   By creating a proprietary internal bracing system and laser-welding it into a 410 stainless-steel body, DURAMAG is able to control round stack and prevent misalignment when rounds attempt to double stack.  DURAMAG’s system also ensures the thousandth-round feeds just as reliably as the first.  This .450 Bushmaster-unique development is in addition to the suite of technology DURAMAG fans have come to rely upon:

Caliber: .450 Bushmaster  Capacity: 5 Rounds  Mag Body: Black Stainless Steel

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