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Duramag SS AR-15 .458 SOCOM/.50 Beowulf 10 Round Rifle Magazine
$38.86 $32.19 Save 17%
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Most Helpful Positive Review These are running fine in my 450 Bushmaster.
I've bought a few of these now for my 450 Bushmaster. I'm running a Spikes lower with carbine collapsible stock and Spikes buffer. Upper is a Bear Creek Arsenal. No feed problems and fires and ejects right to the last round. I did not round off the front of the magazine as some have. Its still flat ...
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Most Helpful Negative Review Buy something else
They jam...pure expensive junk...all four i bought, springs are to weak. After 5 or so rounds, they misfeed and jam. These were run in a CCMG...not a Franken AR...Pmags work a lot better even though they shouldn't.
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Best .458 Socom mags otm!

by GG, Verified Owner from TX, United States Written on July 19, 2026
I’ve been running these mags in my .458 Socom for years and love the performance. Great price as always with OP!
Would recommend: Yes
Was it helpful to you? Yes | No

.50 Beowulf Operate perfectly

by Paul, Verified Owner from CA, United States Written on March 11, 2026
.50 Beowulf mags are getting harder to come by these days, even from the manufacturer. These mags work perfectly and are versatile/interchangeable (.458. & .50). Springs are stiff enough but not too hard to load. The sturdy metal mags adhere tactical wrap better than plastic (I like to wrap my mags to quickly ID the type of load they are charged with). Love these- If they are out of stock it will probably be because of me.
Pros:
  • Built to Last
Cons:
  • Pricey
Best Used for:
  • .50 Beowulf
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Will work for 375 SOCOM

by Phillip Ferris, Verified Owner from SC, United States Written on November 23, 2025
If you're a weirdo who buys from Southern Ballistic Research like me, this will take your. 375 SOCOM munitions as will it take 50 Beowulf, 458 SOCOM and various other big bore cartridges
Would recommend: Yes
Was it helpful to you? Yes | No

.50 Beowulf

by JB, Verified Owner from AL, United States Written on September 17, 2025
Mag runs well. No problems. On Anderson Arms Upper
Pros:
  • works
Cons:
  • 11 rd only
Would recommend: Yes
Was it helpful to you? Yes | No

I thought wrong

by Caught on fire, Verified Owner from MI, United States Written on January 13, 2025
Bought 3 for my 50 beowulf, wanted a mag specific for this round... i hear and see so many mags on the reliability of them... and how the lip needs to be dremeled .... thought this was different.... its.... NOT.... i don't get how their R&D department can't figure this problem out... so, other than it won't feed cuz the round gets caught on the lip? It's a great mag
Pros:
  • Looks great
Cons:
  • Won't feed
Best Used for:
  • Paperweight
Would recommend: No
Was it helpful to you? Yes | No

Satisfactory

by Curr, Verified Owner from OH, United States Written on December 10, 2024
Good sevice from vendor. Items as advertised. Quality materials. Work as they are supposed to. What more can you ask for?
Pros:
  • Quality materials and design
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Great Duramag for 458 socom

by EB, Verified Owner from CA, United States Written on April 11, 2024
The Duramqg work flawlessly for my 458 Socom. I will definitely be ordering several more.
Would recommend: Yes
1 of 1 found the following review helpful.
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Great magazines

by Matt, from PA, United States Written on June 9, 2022
High quality finish on stainless steel construction. Strong springs will keep these mags working for a long time. The caliber engraved on the side will help keep these mags organized in the gun safe. Can’t wait to get them to the range
Pros:
  • Quality Finish
  • SS construction
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

High quality mags

by Matt, from PA, United States Written on June 9, 2022
Got the magazines and couldn’t be happier. High quality stainless mags with the caliber engraved. Helps keeps the gun safe in order. High quality finish and strong springs will have these mags working a long time
Pros:
  • Excellent finish
  • Stainless construction
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Nice addition

by South paw gang, Verified Owner from TX, United States Written on March 31, 2022
Seems to work with the beowulf.... Mag fits well chambers and ejects last round hold open. Now this was a no fire dry run. Mags are made well but not as well as AA mags for the beowulf but still a good go to mag for a decent price
Pros:
  • Price
Cons:
  • Not actual beowulf magazine with the low cut top 9f mag
Best Used for:
  • Secondary mag/just in case
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.