PMAG® 40 AR/M4 (All Colors) GEN M3™ 5.56X45MM NATO Black & Sand MAG233-BLK MAG233-SND
PMAG® 40 AR/M4 (All Colors) GEN M3™ 5.56X45MM NATO Black & Sand MAG233-BLK MAG233-SND
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PMAG® 40 AR/M4 (All Colors) GEN M3™ 5.56X45MM NATO Black & Sand MAG233-BLK MAG233-SND


(6 customer reviews)

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Confused on which mags to buy? Check out our article: “Differences between Gen 2 & Gen 3 PMAGs.”

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The next-generation PMAG 30 GEN M3 is a 30-round 5.56×45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons. Along with expanded feature set and compatibility, the GEN M3 incorporates new material technology and manufacturing processes for enhanced strength, durability, and reliability to exceed rigorous military performance specifications.While the GEN M3 is optimized for Colt-spec AR15/M4 platforms, modified internal and external geometry also permits operation with a range of additional weapons such as the HK® 416/MR556A1/M27 IAR, British SA-80, FN® SCAR™ MK 16/16S, and others.Similar to the MOE PMAG, the GEN M3 features a long-life USGI-spec stainless steel spring, four-way anti-tilt follower and constant-curve internal geometry for reliable feeding, and simple tool-less disassembly to ease cleaning.In addition, a redesigned bolt catch notch in the rear of the magazine provides increased bolt catch clearance, while an over-travel stop on the spine helps ensure the magazine will not over-insert on compatible weapons. Low profile ribs and new aggressive front and rear texture gives positive control of the GEN M3 in all environments, and a paint pen dot matrix has been added to the bottom panel of the body to allow easy marking by the end user for identification. The new, easy to disassemble flared floorplate aids extraction and handling of the magazine while providing improved drop protection, but is slightly slimmer than before for better compatibility with tight double and triple magazine pouches. An included pop-off Impact/Dust Cover can optionally be used to minimize debris intrusion and protect against potential damage to the top cartridge during storage and transit.Made in U.S.A.See all of our Magazines for sale.Popular models:Gen 3 Window PMAGGen 3 Sand PMAGGen 2 Black PMAG


Next-generation impact and crush resistant polymer construction
Modified dimensions allow for wider compatibility with non Colt-spec platforms
Constant-curve internal geometry for smooth feeding
Anti-tilt, self-lubricating follower for increased reliability
Long life USGI-spec stainless steel spring
Over-travel insertion stop on the spine
Ribbed gripping surface and new aggressive front and rear texture for positive magazine handling
Paint pen dot matrix panels on the bottom of the body to allow for identification marking
Flared floorplate aids magazine handling and disassembly yet is slim enough for use with many double and triple pouches
Pop-off Impact/Dust Cover to minimize debris intrusion and for ammunition protection in storage and transitWe ship anywhere in the United States. Our customers are responisble for knowing and complying with their state and local laws.

Additional information

Weight 3.9859577038176 oz
Dimensions 9 × 3 × 1 in


6 reviews for PMAG® 40 AR/M4 (All Colors) GEN M3™ 5.56X45MM NATO Black & Sand MAG233-BLK MAG233-SND

  1. henrystevenson597 (verified owner)

    great price

  2. Keith Parker (verified owner)

    I’ve tried quite a few other AR mags over the years from USGI to MSAR to MFT and PMAGs just work perfectly every time. And that’s really what you want out of a mag, it just works, every time. They feel great in the hand, good grip that builds confidence. I think the Gen 3 are worth a small premium, I use the grid markings to show what ammo I have stored in them, eg 85 for M855, 19 for M193, 23 for American Eagle 223, etc. I think the 40 rounders are worth the extra cost because when I run 3 in my chest rig I’ve got the equivalent of another whole mag without taking up nearly as much real estate.

    Huge shout out to Big Tex, great prices, perfect communication and speedy shipping. What more could you ask for!? I’ll be buying more from them soon!

  3. Thefossildude (verified owner)

    Exactly what I ordered and works perfectly as expected. I will definitely be ordering more from Big Tex, the only place I trust when shopping online now. Great prices, communication, and service, along with the fastest shipping! Keep up the high quality you offer Big Tex and you will continue to blow away all of these other half ass fly by night online stores.

  4. evanrpeace (verified owner)

    PMAG always is a quality mag I trust. I have confidence the spring will have a long life and will feed rounds properly. Order from Big Tex, they’re a wonderful company with good morals and great prices.

  5. julien.gutierrez (verified owner)

    Awesome product, price, and vendor!! In a time where seemingly every vendor is backlogged with orders, gouging prices, poor customer communication, Big Tex is a the complete opposite. Quick shipping, fantastic prices, and every order I’ve placed contains a copy of the constitution.

  6. ROBERT ROSENBUSH (verified owner)

    Awesome mag. Exactly what I was looking for. Best price with fast shipping!

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