Magpul® PMAG® Gen M3 30 rnd AR/M4 Window

(22 reviews)
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Magpul PMAG® Gen M3 30 rnd AR/M4 Window

The next-generation PMAG® 30 Window GEN M3 is a 30-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons that features transparent windows to allow rapid visual identification of approximate number of rounds remaining. Along with 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.

Modified internal and external geometry also permits operation with a wide range of non Colt®-spec platforms such as the HK® 416 and MR556A1, M27 IAR, British SA-80, FN® SCAR™ MK 16/16S, and others. 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.

Similar to the MOE® PMAG®, the GEN M3 Window features a long-life 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, an included pop-off Impact/Dust Cover can optionally be used to minimize debris intrusion and protect against potential damage during storage and transit. 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 the 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
  • 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
  • Pop-off Impact/Dust Cover to minimize debris intrusion and for additional protection in storage and transit


  • 5

    Posted by Jason Dillon on 11th May 2020

    The Magpul products speak for themselves. But these guys are crazy fast on delivery! I swore they were right in my backyard it got to me so quick!

  • 5

    Posted by Tucker on 31st Jan 2020

    Awesome as always! Picked up some extra!

  • 5
    Wont shop anywhere else..

    Posted by Adam Linn on 25th Jan 2019

    I have no problem paying for quality gear with even better customer service. When I need something...its reason going anywhere else.

  • 5
    Awesome looking and greet mags

    Posted by Gregory Sweat on 8th Mar 2017

    Always love Magpal and the window is sweet and really reliable

  • 5
    Great upgrade over those Aluminum junkers

    Posted by Daniel on 25th Oct 2016

    Light, but solid mag.

  • 5
    Great mags

    Posted by Alan on 28th Sep 2016

    The weak point in any firearm is the magazine. With these that problem is nonexistent

  • 5
    What more can I say?

    Posted by Drygulcher on 17th Jan 2016

    Gotta be so popular for a reason! Lightweight and tough as nails.

  • 5

    Posted by daniel w on 17th Jan 2016

    Fits and looks good

  • 5
    Great Product

    Posted by White43210 on 8th Oct 2015

    Another great product from Magpul. I have PMAGS for my AR, SR, and more recently my AK. No problems.