Magpul PMAG20 LR/SR Gen M3 5/20 Round Black


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The 7.62×51 NATO (.308 Winchester) PMAG 20 LR/SR GEN M3 is a lightweight, cost effective, highly reliable magazine for SR25/M110 pattern rifles. It features true 20-round body pinned to 5, a constant-curve body, an anti-tilt follower, and a snap on impact / dust cover.

Our GEN M3 PMAGs feature a long-life stainless steel spring, an anti-tilt, self-lubricating follower, and constant-curve internal geometry for reliable feeding.

Low profile ribs and an aggressive front and rear texture give positive control of the GEN M3 in all environments, and a paint pen dot matrix at the bottom panel of the body to allow easy marking by the end user for identification. The easy-to-disassemble flared floorplate aids extraction and handling of the magazine while providing improved drop protection, and better compatibility with tight double and triple magazine pouches. An included pop-off impact / dust cover can be used to minimize debris intrusion and protect against potential damage to the top cartridge during storage and transit. Its simple, tool-less disassembly makes for for easy cleaning and maintenance.

Designed specifically for SAAMI-spec ammunition, the PMAG 20 LR/SR GEN M3 is less than half the weight of standard issue steel magazines and maintains a service life round count approximately equal to the rifle barrel itself.

Made in the USA



    • Anti-tilt, self-lubricating follower, a high-quality stainless steel spring, and constant-curve internal geometry ensure smooth feeding

Easy Identification

  • Use the paint pen dot matrix to easily identify your different loads when it’s crunch time

Rugged Magpul Polymer

  • Next-generation impact and crush-resistant polymer construction with a high-quality stainless steel spring for corrosion resistance
  • Ribbed gripping surface and a new aggressive front and rear texture for positive magazine handling

Top-to-Bottom Security

  • The multi-use impact / dust cover minimizes debris intrusion and protects cartridges from potential damage during storage and transit
  • Flared floorplate aids magazine handling and disassembly


Caliber 7.62 x 51
Platform LR308/SR25
Compatiblity Ruger Precision Rifle, Mossberg MVP, others
Capacity 5

*Note: Optimized for use with SAAMI-spec 7.62×51/.308 Winchester ammunition.  To accommodate longer than SAAMI-spec match ammunition, this magazine may not drop free from all makes.



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Please note: International Shooting Supplies does not ship to addresses outside Canada.