The Magpul PMAG 20 LR/SR GEN M3 Window Magazine is engineered for exceptional reliability and performance. This lightweight 20-round magazine is designed specifically for SR25/M110 pattern rifles chambered in 7.62x51 NATO (.308 Win), making it an essential component for precision shooters. Constructed from advanced polymer, it features transparent windows for easy round count and an innovative MagLevel system that does not compromise durability. Enjoy seamless loading, confident handling, and robust construction with each use. Next-generation impact and crush-resistant polymer construction High-quality stainless steel spring for corrosion resistance Anti-tilt, self-lubricating follower Anti-glare translucent MagLevel windows on both sides of the body Weighs less than standard-issue steel magazines Ribbed gripping surface and aggressive front and rear texture A paint pen dot matrix at the bottom panel of the body Optimize your shooting experience with the Magpul PMAG 20 LR/SR GEN M3 Window Magazine, offering lightweight reliability and innovative features for the modern marksman.