OKAY 20-Round Surefeed AR/M4 USGI Magazine


The gold standard in 20-round magazines

(5 customer reviews)
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OKAY OKAY 20-Round Surefeed AR/M4 USGI Magazine

The Okay Industries SureFeed magazines offer many advantages over the standard aluminum AR-15 magazines.

With over 40 years of battle tested use, these aluminum magazines are preferred by soldiers in various areas of the U.S. Military. The stainless-steel spring provides proper tension and keeps rounds properly aligned for optimal function. These USGI magazines are all hardcoat anodized and this model features a gray dry-film lube or tan finish. Every SureFeed magazine is put through a multi-step inspection and testing process to ensure they live up to the performance standards that people have come to know with Okay Industries.


  • 20 round Aluminum AR-15 magazine
  • Hardcoat anodized
  • Mil-Spec stainless steel follower spring
  • Each magazine passes a rigorous inspection and testing process
  • 100% Made in the U.S.A.

While polymer magazines do have their benefits and space age aesthetic, aluminum mags are not to be forgotten about. One of the benefits that aluminum has over polymer is that it does not swell or shatter in extremely high or low temperatures. The aluminum feed lips are also strong enough to withstand the pressure of a fully-loaded magazine over long periods of time without bending or breaking.

The history of Okay Industries goes back to WWII where they helped manufacture millions of M1 Carbine magazines for the United States Military. Fast forward and they helped co-develop the 32-round M16 magazine and has been a preferred supplier of magazines to the U.S. government ever since. Now Okay Industries are making their widely popular AR-15 magazines available to the public with the SureFeed and SureFeed E2 designs.

Capacity: 20 Rounds
Caliber: 5.56 NATO / .223 Remington
Material: Aluminum
Finish: Gray Dry-Film Lube or Tan

Additional information


Black, Dry Film Lube, Tan

5 reviews for OKAY 20-Round Surefeed AR/M4 USGI Magazine

  1. Coop (verified owner)

    Great product! Lightning fast shipping! A free meal and a handwritten note! I couldn’t ask for more!

  2. Lincoln E (verified owner)

    Great for that classic 20 round mag profile, OKAY are some of the best usgi mags you can get. Excellent service from Rooftop Defense as well!

  3. sterling.vinh (verified owner)

    Great product and service

  4. Roland

    Slides in and out like it was buttered. No wears on the catch unlike the dry film version.

  5. jzimmerman1985 (verified owner)

    Looks great, feeds great, was at my door before I finished ordering. Would not hesitate to buy literally anything from this site.

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