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Magpul PMAG Gen 3 30 RD w/Window

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SALE Magpul PMAG GEN M3 AR-15 30 Round Window Magazine (10 Pack)
Magpul PMAG GEN M3 AR-15 .223/5.56 30 Round Window Magazine (10 Pack)
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Magpul PMAG GEN 3 window case
Magpul PMAG GEN M3 AR-15 30 Round Window Magazine Case (50 Pack)
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This is the Magpul PMAG AR-15 30-round window magazine with GEN M3 technology, chambered in .223/5.56. 

The next-generation Magpul PMAG GEN M3 5.56×45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons features transparent windows to allow rapid visual identification of an approximate number of rounds remaining. Along with an expanded feature set and compatibility, the GEN M3 Window incorporates new material technology and manufacturing processes for enhanced strength, durability, and reliability to exceed rigorous military performance specifications.

While the GEN M3 is optimized for Colt-spec AR15/M4 platforms, modified internal and external geometry also permits operation with a range of additional weapons such as the HK® 416/MR556A1/M27 IAR, British SA-80, FN® SCAR™ MK 16/16S, and others.

Similar to the MOE PMAG, the GEN M3 Window features a long-life USGI-spec stainless steel spring, four-way anti-tilt follower and constant-curve internal geometry for reliable feeding, and simple tool-less disassembly to ease cleaning.

In addition, a redesigned bolt catch notch in the rear of the magazine provides increased bolt catch clearance, while an over-travel stop on the spine helps ensure the magazine will not over-insert on compatible weapons. Low profile ribs and new aggressive front and rear texture gives positive control of the GEN M3 in all environments, and a paint pen dot matrix has been added to the bottom panel of the body to allow easy marking by the end user for identification. The new, easy to disassemble flared floorplate aids extraction and handling of the magazine while providing improved drop protection, but is slightly slimmer than before for better compatibility with tight double and triple magazine pouches.

Durable dual-side transparent windows allow for quick determination of approximate number of rounds remaining in the magazine. Utilizing a high visibility indicator coil on the spring and numerical markers on the magazine body, the MagLevel™ system provides positive verification without affecting the durability or reliability of the magazine.

Made in U.S.A.


  • Next-generation impact and crush resistant polymer construction
  • Modified dimensions allow for wider compatibility with non Colt-spec ‘STANAG 4179’ platforms
  • Constant-curve internal geometry for smooth feeding
  • Anti-tilt, self-lubricating follower for increased reliability
  • Long life USGI-spec stainless steel spring, black-oxide coated (MIL-DTL-13924D)
  • Anti-glare translucent MagLevel windows on both sides of the body along with a painted indicator on the spring allows for
    easy determination of rounds remaining from 1 to 30
  • Over-travel insertion stop on the spine
  • Ribbed gripping surface and new aggressive front and rear texture for positive magazine handling
  • Paint pen dot matrix panels on the bottom of the body to allow for identification marking
  • Flared floorplate aids magazine handling and disassembly yet is slim enough for use with many double and triple pouches


Manufacturer Part #






Customer Reviews

Based on 50 reviews
Alexander B.
Nice mags

Sturdy construction with a good grip

Ron S.
Toughest of the polymer style of mags

I have tested my gen 2 Pmags by loading them to 30 rounds and used the dust covers for added spring tension and put them away for 5 years. They functioned like they were brand new. I have zero doubts that my gen 3 Pmags will function any different than my gen 2’s have done.

Bradley H.

Magpul PMAG Gen 3 30 RD w/Window

Magpul Gen 3 30 round window mag 5.56

Fast delivery, good prices. Not much else needs saying.

Excellent magazine!

The regular PMAG Gen 3s were out of stock so I grabbed one of these instead. Works just as well, feels great and the window is a handy little addition. The Mag Shack has consistently shipped my orders quickly and the prices are quite competitive. I'll most likely pick up some more of these in the future.