Magpul PMAG GEN M3 25-Round Magazine for AR-10/SR25 - .308 Win/7.62x51mm NATO, Black Polymer

The Magpul PMAG GEN M3 is a 25-round magazine for AR-10 and SR25 pattern rifles chambered in .308 Winchester / 7.62x51mm NATO. Built for shooters who demand reliability without compromise, this magazine combines proven Magpul engineering with practical field features that work whether you're at the range, hunting, or training. The constant-curve body and anti-tilt follower deliver smooth, reliable feeding with every round, while the impact and crush-resistant polymer construction handles the realities of tactical use and outdoor conditions.

What sets the GEN M3 apart is its transparency and handling. Translucent MagLevel windows on both sides let you see your round count at a glance — no guessing on the line when you need to top off. A painted indicator on the spring adds another visual reference, and the paint pen dot matrix on the body helps you quickly identify different loads when you're juggling ammunition types. The flared floorplate and aggressive texture on the front and rear give you something positive to grab, even with gloved hands or in low light.

Made in the USA, the PMAG GEN M3 is engineered specifically for SAAMI-spec .308 Winchester ammunition and is compatible with a wide range of AR-10 variants, including models from Armalite, Colt, LaRue, KAC, LMT, LWRCI, POF, Ruger, S&W, and others. Check compatibility below if your rifle is less common — some older designs and piston-driven platforms use different magazine patterns and won't work with this one.

Key Features

• True 25-round capacity optimized for .308 Winchester / 7.62x51mm NATO
• Translucent MagLevel windows with painted spring indicator for rapid round-count verification
• Constant-curve body geometry and self-lubricating anti-tilt follower for reliable feeding
• Impact and crush-resistant polymer construction built to handle rough handling
• Flared floorplate and aggressive grip texture for positive control
• Paint pen dot matrix for easy ammunition load identification
• High-quality stainless steel spring
• Made in the USA

Specifications

Frequently Asked Questions

Which AR-10 rifles are compatible with this magazine?

The PMAG GEN M3 works with SR25 and AR-10 pattern rifles including Armalite AR-10A, Colt LE901-16S, CORE30, JP Enterprises LRP-07, KAC SR25, LaRue OBR, Les Baer .308, LMT .308 MWS, LWRCI REPR, Mega Arms MATEN, Noveske Gen III N6, POF P-308, Ruger SR-762, Ruger Precision Rifle, S&W M&P10, and SIG716, among others. It is NOT compatible with Armalite AR-10B, Springfield Armory M1A, Rock River Arms LAR8, FN SCAR 17S, PTR-91, HK417, or any rifles using M14, FN FAL, or HK 91/G3 pattern magazines. If your rifle isn't listed, verify compatibility before purchase.

Will this magazine work with my older Bushmaster or DPMS LR-308 rifle?

The PMAG GEN M3 is compatible with older Bushmaster .308 ORC, Remington R-25, and original DPMS LR-308 models, but it is not optimized for bolt lock functionality with newer DPMS GII-pattern rifles. Verify your specific model before ordering.

What ammunition does this magazine feed?

The PMAG GEN M3 25 is optimized for SAAMI-specification .308 Winchester and 7.62x51mm NATO ammunition.

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

The magazine features translucent MagLevel windows on both sides of the body and a painted indicator on the spring, allowing you to quickly determine your round count without opening the magazine or removing it from the rifle. The paint pen dot matrix on the body also helps you identify different ammunition loads.