This is the CPD Duramag SS AR .450 Bushmaster 5 Round Magazine. 

When shooting big-bore rounds like the .450 Bushmaster, feeding reliability can be an issue, typically stemming from the magazine. That’s why DURAMAG designed this stainless steel .450 Bushmaster magazine from the ground up.

DURAMAG was able to prevent misalignment often caused by the geometry of other magazines designed for smaller, tapered rounds by creating a proprietary internal bracing system and laser welding it into the 410 stainless steel body. The result is phenomenal reliability.

With the EverFlex anti-fatigue spring technology inside the magazine and the T-360 coating technology covering the entire magazine, this magazine should serve you for many years. 

If you’re shooting .450 Bushmaster, chances are that you’re hunting. The last thing you want is to have a shot and not be able to take it due to a magazine malfunction. 

Don’t miss your shot at grabbing some of these .450 Bushmaster magazines from DURAMAG while they are in stock!

DURAMAG 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 have 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.