The PMAG 20 LR/SR GEN M3 Window is a lightweight, high-performance 20-round magazine designed for SR25/M110 pattern rifles chambered in 7.62x51mm NATO (.308 Win). Constructed from next generation, impact and crush-resistant polymer, this magazine offers exceptional durability while weighing less than half of standard steel magazines. The innovative MagLevel system, featuring transparent dual-side windows, allows for quick round count estimation, enhanced by a high-visibility indicator coil and numerical markers. This system doesn't compromise the magazine's strength, ensuring continued reliable feeding thanks to its constant-curve internal geometry, anti-tilt, self-lubricating follower and corrosion-resistant stainless steel spring. The low-profile ribs, aggressive texturing and flared floorplate provide a secure grip, efficient handling and improved drop protection, making it perfect for rapid magazine changes in all environments. Additionally, the magazine is easy to disassemble for cleaning and maintenance and its compatibility with SAAMI-spec ammunition and accessories for the 7.62x51mm NATO line of PMAGs ensures versatility. Whether you're at the range or in the field, this PMAG is built for durability, reliability and performance.

Engineered with next generation impact- and crush-resistant polymer construction, this magazine offers superior durability while incorporating a high-quality stainless steel spring for enhanced corrosion resistance
The anti-tilt, self-lubricating follower and constant-curve internal geometry work together to ensure flawless feeding and reliable performance in high-stress situations
Anti-glare translucent MagLevel windows on both sides of the magazine, combined with a painted indicator on the spring, provide clear and easy round count visibility at a glance
Designed for lightweight efficiency, this magazine weighs less than standard-issue steel alternatives, reducing overall carry weight without compromising durability
A ribbed gripping surface with aggressive front and rear textures ensures positive handling and a secure grip
A flared floorplate aids in extraction and handling while providing improved drop protection and better compatibility with tight double magazine pouches
A paint pen dot matrix on the bottom panel of the body allows for easy identification marking

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It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

It is the customer’s responsibility for understanding state laws regarding magazine capacities. Palmetto State Armory abides by all state regulations regarding the sale of high capacity magazines. We DO NOT ship high-capacity magazines with firearms to certain states. We WILL NOT replace high capacity magazines with state compliant magazines. We DO NOT offer refunds in place of the magazines. Please see our terms and conditions for a list or restricted states.

California 10+ Round Magazine Buyers: PSA values your freedom and constitutional rights above all else. However, PSA will not accept new orders nor will ship any order until the Ninth Circuit Federal Court of Appeals mandate becomes finalized. Once this mandate is finalized, we will start accepting new orders and ship 10+ round magazines to California Customers.

Magpul PMAG 20 LR/SR Gen M3 20rds 7.62x51mm/.308 Win, Medium Coyote Tan