My Cart

You have no items in your shopping cart.

60 Day Returns

No restocking fees See Details.

No-Hassle Guarantee

Best customer service See Details.

Ships from $4.99

On most items See Details.

Product was successfully added to your shopping cart.

Magpul PMAG GEN M3 AR-15 .223 / 5.56 40-Round Magazine

Magpul PMAG GEN M3 AR-15 .223 / 5.56 40-Round Magazine « »



19.49 $19.49

Save $3.50

Availability: In stock

  • Modified dimensions for platforms such as the HK416/MR556A1/M27 IAR, British SA-80, FN SCAR™ MK 16/16S
  • Over-travel insertion stop on the spine

* Required Fields



Save $3.50
Shipping Restrictions

This is an AR-15 Gen M3 PMAG 40-round extended magazine in 5.56mm/.223 Rem.

With impact-resistant polymer construction, USGI-spec stainless steel internal springs, and Magpul’s constant curve internal geometry, these Gen M3 magazines are the perfect upgrade to any AR-15 arsenal.

Magpul’s Gen M3 PMAG magazines combine the combat-ready reliability of previous PMAGs with additional features like a paint pen dot matrix for easy labeling, redesigned bolt catch, over-insertion stop and aggressive grip texturing for superior performance.

Other new features include flared floorplates and slimmer design for easier handling and storage in tight magazine pouches.

And thanks to their upgraded internal & external geometry, these Gen M3 PMAGs can also be used with a wide variety of non Colt-spec platforms ranging from the M27 IAR, British SA-80, and FN SCAR MK16/16s to the HK 416 and MR556A1.

Grab a few 40-round PMAGs to complete Your AR arsenal and double down on firepower today!

Magpul magazines are proudly made in the U.S.A.

Material: Polymer
Caliber: 223 Remington, 223 Wylde, 300 AAC Blackout, 5.56mm NATO
Capacity: 40-Round
Fits: AR-15
Get 10% Off
Your Next Order Over $100.
Sign up now to receive exclusive offers and the newest arrivals straight to your inbox.
Coupon expires in 14 days. Limit one per customer. Not applicable toward tax, shipping, or ammunition orders. Cannot be combined with other offers or promotions. Certain brands and products may be excluded from this offer. Additional restrictions and exclusions may apply.