Duramag 7 Round 450 Bushmaster Magazine for AR-15 – Stainless Steel

SKU: 7X45041175CPD

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Durable .450 Bushmaster Magazine for Hunting

This Duramag AR-15 Stainless Steel 7 Round Magazine for .450 Bushmaster is a complete solution for geometry and durability problems of putting straight-walled, big-bore rounds in a magazine. It is designed from the ground up to properly support the round in a magazine that fits into the AR15 magazine well.

Designed to Prevent Double-Feeds

While originally intended to fit a standard AR15 magazine, improper geometry and follower design can lead feeding issues and rifle malfunctions for .450 Bushmaster. By creating a proprietary internal bracing system and laser-welding it into a 410 stainless-steel body, this magazine prevents rounds from getting misaligned and prevents double-feeds.

The enhanced system of this AR-15 magazine also ensures reliability over thousands of rounds, not just the first shots at the range.  This .450 Bushmaster-unique development is in addition to the suite of technology DURAMAG fans have come to rely upon.


  • Caliber: .450 Bushmaster
  • Capacity: 7 Rounds
  • Body Material: 400 series stainless steel
  • Spring Material: 17-7 Stainless Steel Wire
  • Follower Material: Polymer
  • Follower Color: Black
  • 17-7 Stainless Steel Wire Spring
  • Anti-Tilt Follower
  • Weight: 4.56 oz
  • Finish: Matte Black

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

ASC Limited Life Warranty

If you are not completely satisfied with your purchase, you may return it within 90 days of purchase for an exchange to an identical product or an ASC credit with proof of purchase.

Our Limited Lifetime Warranty covers defects in materials and workmanship under normal use, for ASC branded products with proof of purchase. ASC will exchange it for an identical product or issue an ASC credit.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 12 reviews
Johnny Miller
Excellent product quality

Very pleased with my purchase. Definitely high quality mags. Runs very smooth in my build.

Thanks for sharing your feedback! We're glad you are satisfied with your purchase!

Lester Bruce
Great mag !

Mag looks great, & cool, 2 more rounds for less price of other 5 round mags, will purchase again from At3 there customer service is off the charts. All my friends are shopping from At3 now!!!!!

Thanks for the review! We're glad you're happy with the mag - it's great to see other people shopping from At3 and getting great customer service.

Michael McDonald

Great magazine have had no issues. Only complaint wish it was a 20 round capacity

Thank you for your feedback. We are glad to hear that you have had no issues with the magazine and that it is a great product. We would love to see it come in at a 20-round capacity, though!

john r
duramag magazine

have not used them yet but seems like a good quality magazine

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Great mag

We all know that not all magazines are equal. Have a feed problem? Chances are the magazine is the issue. Duramag makes a great product that operates flawlessly every time. Buy with confidence!

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.