Magpul PMAG 40 AR/M4 Gen M3 5.56 AR-15 Magazine - Black

The Magpul PMAG 40 Gen M3 is a 40-round 5.56 NATO/.223 Remington polymer AR-15 magazine. Designed for high-volume shooting, this 40-round AR-15 magazine combines expanded capacity with reliable feeding and consistent function across a wide range of compatible firearms, including non-AR platforms. The magazine body is constructed from impact-resistant polymer, featuring a constant-curve internal geometry, anti-tilt follower, and stainless steel spring to support smooth, repeatable cycling. External features include aggressive texturing for grip, a flared floorplate for easier handling, and compatibility with tight-fit double or triple magazine pouches. Additional features like a bolt catch notch, over-travel stop, and paint pen dot matrix add utility for both maintenance and quick magazine identification. Made in the United States.

Features:

• 40-round 5.56 NATO/.223 Remington magazine
• Impact and crush-resistant polymer construction
• Designed for better compatibility with other platforms
• Constant-curve internal geometry for consistent feeding
• Anti-tilt, self-lubricating follower
• Stainless steel spring for long service life
• Redesigned bolt catch notch for improved clearance
• Over-travel stop prevents over-insertion
• Aggressive front and rear texture
• Flared floorplate for easier handling and disassembly
• Paint pen dot matrix for easy identification
• Color: black
• Made in the USA