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Magpul PMAG 20 Round Magazine 5.56x45mm NATO



Modified dimensions allow for wider compatibility with non-Colt-spec platforms.

Due to state law restrictions, high capacity magazines cannot be shipped to the following states: CA, CO, CT, DC, HI, MD, MA, NJ, NY. It is the responsibility of the customer to know and abide with state or local gun laws.
  • Next-generation impact and crush resistant polymer construction
  • Constant-curve internal geometry for smooth feeding
  • Anti-tilt, self-lubricating follower for increased reliability
  • Long life USGI-spec stainless steel spring for parts commonality
  • 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 but slim enough to use with double and triple pouches
  • Pop-off Impact/Dust Cover to minimize debris intrusion and for additional protection in storage and transit
  • Made in U.S.A.
The next-generation PMAG 20 GEN M3 is a 20-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons. Along with expanded feature set and compatibility, the GEN M3 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.
The PMAG 20 GEN M3 features a long-life USGI-spec stainless steel spring for commonality, 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.

High Capacity Magazine Restrictions:
High capacity magazines are not legal in all areas of the U.S. Please be aware of your local laws before ordering. No sales of 30rd magazines to NY, MA, CA, MD, NJ, HI. See our company policies for more information. It’s up to the customer to comply with all laws regarding these items.
EXPORT NOTICE: This is an item controlled for export by the International Traffic in Arms Regulations (ITAR). These controls take the form of export regulations and license requirements.

As part of the express consideration provided for receipt of Magpul's goods, technical data and/or services, you, the customer, acknowledge that the export, re-export or other transfer, directly or indirectly, of the goods, technical data and/or services provided by Magpul in violation of U.S. law is prohibited.

Customers acquiring ITAR goods, technical data and/or services from Magpul shall be responsible for obtaining any necessary U.S. or other government authorization required to ensure compliance with applicable export laws.

State Restrictions on Large-Capacity Magazines:Please check your local laws for restrictions before ordering Magazines.
California10 round limit
Colorado15 round limit
Connecticut10 round limit
District of Columbia10 round limit
Hawaii10 round limit
Maryland10 round limit
Massachusetts10 round limit
New Jersey10 round limit
New York10 round limit


Ratings & Reviews

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Great Mag, need to sell Impact Covers


THere are great magazines. I like the 20 round mags at the range and for hunting. They allow you to lay completely prone or shoot from a rest without your gun falling over or having to rest gun on magazine. They really need a dust cover. I would not leave round in the mag for very long without a cover because it keep the lips from seperating. This model does not come with them so you should buy some seperately.

Hey, It's a Magpul


Was a little concerned since I've never heard of this site before, but I ordered 3 of these mags on backorder anyway; expected to wait weeks or even months, but they were shipped and in-hand less than a week later! Ordered: 19JUN Shipped: 21JUN Received: 24JUN ****THESE MAGS DO HAVE DUSTCOVERS!!!****

Great As Always


This 20 round Magpul PMAG is great, as expected. This is the Gen M3 style magazine, and it comes with the dust cover. The only thing is the description says that it's a straight body magazine, but it actually has a slight bend to it, but the magazine functions flawlessly. Anything and everything I own by Magpul is always top notch. I had looked on all the other websites for the 20 round PMAG and everyone was either out of stock or the magazines were WAY too expensive. Officer Store was the only place who had them in stock and at a fair, pre-craziness price. If you're thinking of ordering this product or any product from Officer Store, don't hesitate.

Great product and as always, great price


It's a Magpul, enough said!

Magpul Quality


As always, Pmags are well built and tested, and a quality product.