Confused on which mags to buy? Check out our article: “Differences between Gen 2 & Gen 3 PMAGs.”
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PRODUCT DETAILS
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 capacity, 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.

20-ROUND RELIABILITY
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
Adam Garnier (verified owner) –
Outstanding quality and longevity. My old ones weren’t that bad after 4000 rounds together but it was time to upgrade for the suppressed Falkor we use at work.
JR (verified owner) –
Go to magazine for my aero m5 308
Person of 2A (verified owner) –
Great for feeding 308, and even 6.5 Creedmoor too
nathan0215 (verified owner) –
Hard to beat these mags for large frame gas guns! No issues loading longer loads. Standard Magpul reliability!
W (verified owner) –
Best mags for any 308 chambered AR. Buy em and dont look at other brands.