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10005799 Reviews & Ratings

The Polymer80 .50 Beowulf AR-15 magazine features a heavy-duty, reinforced polymer body, with an innovative floorplate design that ensures this mag will consistently hold a full 10 rounds of .50 Beowulf. At the same time, this mag extremely strong - ready to take the knocks and bumps of competition shooting - AND also lightweight.

Full 10-round capacity
Heavy-duty polymer mag body
Advanced floorplate design gives full ammo stack support
For use with .50 Beowulf ammo ONLY
Available in Black, Flat Dark Earth & O.D. Green to match your Polymer80 AR-15 receiver

Most importantly, the Polymer80 team designed this magazine expressly for the unique size, shape, and characteristics of .50 Beowulf cartridge. It’s not a modified mag meant for a different round that was "lashed up" to sort of work for .50 Beowulf. When you lock one of these mags into your .50 Beowulf rifle’s magwell, you can be sure that it will deliver all 10 rounds reliably, without hang-ups, jams, or leaving you high and dry with a disabled rifle.

See all of our AR15s and AR15 parts here.

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5 Stars

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2 Stars

1 Stars

83%

Reviews Summary

Overall, this product garners predominantly negative feedback, with users reporting serious reliability issues such as poor feeding, flexibility causing rounds to eject, and failures of essential magazine functions. While the design is appreciated by some, the numerous functional flaws lead to dissatisfaction, suggesting potential buyers should consider alternatives.

What Reviewers Are Saying

Functional Issues

85%

A significant number of reviewers highlight serious functional problems with the magazines, including issues with loading, feeding failures, and cartridges spontaneously ejecting. These problems greatly undermine the usability of the product, leading to a high level of frustration among users.

Product Design

20%

Many users appreciate the aesthetic aspects of the magazines, noting their attractive appearance. However, this positive aspect is overshadowed by the severe functional flaws, leading to a consensus that looks do not compensate for subpar performance.

Material Quality

60%

Several reviews mention that the materials used in construction are thin and overly flexible, compromising the magazine's structural integrity. This flexibility contributes to the magazines not fitting securely and ejecting rounds when loaded.

Difficulty in Use

75%

Reviewers frequently report challenges in both loading the magazines and inserting them into the firearm. The design inconsistencies result in a frustrating user experience, with several users noting that the magazines do not lock properly and require excessive force to use.

Recommendation Against Purchase

90%

The majority of reviewers strongly advise against purchasing these magazines, citing their numerous flaws and failures. Many express regret for having bought them and warn potential buyers about likely disappointment.

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Needs additional engineering.

I bought 7 of these in OD Green. They look great, which is why I gave them 2 stars, but they don't work well. When fully loaded the spring pressure expands the top of the magazine making it a really tight fit to insert. As a result, they don't feed well either. The two problems combined create a third problem. When I removed one magazine after the third round did not feed properly, all of the 7 remaining rounds spontaneously ejected out of the magazine. This happened several times. The last round in the magazine did not feed at all in any of the 7 mags, and the follower does not travel high enough to lock the bolt to the rear when the magazine is empty. I did manage to make one magazine functional by heating the top of the polymer mag housing with a heat gun, squeezing the sides in about 1/8", and filing the follower flat. It has an asymmetrical 5.56 follower even though the Beowulf rounds single stack in the magazine. The manufacturer should take note.