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. The 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.