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Magpul PMAG 40rd AR15/M4 Gen M3 5.56x45 magazine
Magpul PMAG 40rd AR15/M4 Gen M3 5.56x45 magazine - Image 1 of 0
Magpul PMAG 40rd AR15/M4 Gen M3 5.56x45 magazine - Image 2 of 0
Magpul PMAG 40rd AR15/M4 Gen M3 5.56x45 magazine - Image 1 of 0
Magpul PMAG 40rd AR15/M4 Gen M3 5.56x45 magazine - Image 2 of 0
Magpul PMAG 40rd AR15/M4 Gen M3 5.56x45 magazine - Image 1 of 0
Magpul PMAG 40rd AR15/M4 Gen M3 5.56x45 magazine - Image 2 of 0

AR-15 MAGPUL 40RD PMAG Gen M3 5.56x45 MAGAZINE

2 Reviews
$
SKU#: MAGPUL-PMAG-40AR
Stock Status: 
IN STOCK AVAILABLE FOR PURCHASE
The next-generation PMAG 40 GEN M3 is a 40-round 5.56x45 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.

Modified internal and external geometry also permits operation with a wide range of non Colt-spec platforms such as the HK® 416 and MR556A1, M27 IAR, British SA-80, FN® SCAR™ MK 16/16S, and others. 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.

Similar to the MOE PMAG, the GEN M3 features a long-life 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, an included pop-off Impact/Dust Cover can optionally be used to minimize debris intrusion and protect against potential damage during storage and transit. 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.

Made in U.S.A.


Magazine Capacity Restrictions: CSS follows all state regulations regarding the sale of High Capacity Magazines. We do NOT ship High Capacity Magazines to the states listed below. You should be familiar with local laws where it can be a crime to possess a High-Capacity Magazine, as defined by your jurisdiction.

Magazines Capacity Restrictions by State as follows:
California: No magazines over 10 rounds.
Colorado: No shotgun magazines over 8 rounds. No other magazines over 15 rounds. Local jurisdiction laws may vary.
Connecticut: No magazines over 10 rounds.
Delaware: No magazines over 17 rounds.
District of Columbia: No magazines over 10 rounds.
Hawaii: No magazines over 10 rounds that may fit a pistol.
Illinois:
  • No magazines over 15 rounds to Aurora, IL
  • No magazines over 12 rounds to Chicago, IL
  • No magazines over 16 rounds to Franklin Park, IL
  • No magazines over 10 rounds to Oak Park, IL
  • No magazines over 35 rounds to Riverdale, IL
Maryland: No magazines over 10 rounds.
Massachusetts: No magazines over 10 rounds.
New Jersey: No magazines over 10 rounds.
New York: No magazines over 10 rounds.
Rhode Island: No magazines over 10 rounds.
Vermont: No magazines over 10 rounds for rifle, 15 for pistol.
Washington: No magazines over 10 rounds.

Reviews

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Average Rating:
( 2 )
Khalid Reddick from Chicago, IL United States
October 15, 2025
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Jose Pan99 from Miami, FL United States
May 13, 2024
Users found this review helpful:
+10 rounds for 10 more bucks
I think getting these was just what I needed to pack a little extra ammo at the range or in service. Billing was simple and payment process effective. Shipping was timely.
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