Magpul Mag556-Mcb Pmag 30 Ar/M4 Gen M3 Window 556

The Magpul PMAG 30 Gen M3 Window is a 30-round 5.56x45 NATO magazine built for AR15 and M4 platforms that combines proven reliability with user-friendly features you'll actually appreciate in the field. Whether you're running a standard Colt-spec rifle, an HK 416, a SCAR, or any other STANAG 4179-compatible platform, this next-generation polymer magazine feeds rounds with the consistency serious shooters demand. It's the kind of workhorse gear that disappears into your loadout and just works—which is exactly what you want from a mag.

The dual-side transparent windows with MagLevel indicators let you verify your round count at a glance without breaking your shooting position. Magpul's high-visibility coil spring and printed numerical markers on the body make estimating remaining ammo quick and reliable. The anti-tilt follower and constant-curve internal geometry ensure smooth, predictable feeding under any conditions, while the long-life stainless steel spring is built to last through thousands of cycles. Tool-less disassembly means field cleaning is straightforward—no guessing, no parts left behind.

Handling and control matter. The redesigned floorplate is slimmer than earlier versions, so it plays nicer with double and triple mag pouches without sacrificing durability or drop protection. Aggressive front and rear texture gives you a confident grip, and low-profile ribs keep things snag-free when drawing from a pouch. The over-travel stop on the spine prevents over-insertion on compatible rifles, while the bolt catch notch has been refined for better clearance. A paint pen dot matrix on the bottom lets you mark mags for quick identification across your collection. Made in the USA.

Key Features

• Dual-side MagLevel windows with high-visibility indicator coil for quick round-count verification
• Anti-tilt, self-lubricating follower and constant-curve geometry for reliable feeding
• Long-life USGI-spec stainless steel spring rated for thousands of cycles
• Over-travel insertion stop and refined bolt catch notch for secure seating
• Improved slimmer floorplate compatible with double and triple magazine pouches
• Aggressive textured gripping surface for confident handling
• Paint pen dot matrix on body for user identification marking
• Tool-less disassembly for easy field cleaning
• Wide compatibility with AR15, M4, M16, SCAR MK16/16S, HK 416, and other STANAG 4179 platforms

Specifications

Frequently Asked Questions

Will this PMAG fit my specific rifle?

The Gen M3 Window is optimized for Colt-spec AR15 and M4 platforms and also works with a wide range of STANAG 4179-compatible rifles including the HK 416, SCAR MK16/16S, M27 IAR, SA-80, and IWI Tavor. If you're running a non-standard platform, verify STANAG 4179 compatibility before purchase.

How do I know how many rounds are in the magazine?

The dual-side MagLevel windows on both sides of the body, combined with numerical markers printed on the magazine and a high-visibility indicator coil on the spring, let you quickly estimate your round count from 1 to 30 without removing the mag from your rifle or pouch.

Can I use this magazine in a double or triple mag pouch?

Yes. The redesigned, slimmer floorplate on the Gen M3 is specifically engineered to fit comfortably in double and triple magazine pouches while maintaining durability and drop protection.

What's included in the box?

The package includes the PMAG 30 Gen M3 Window magazine. Note that a dust cover is not included.