Black Friday Starts NOW! | Shop Black Friday

40 Round AR 15 PMAG: Magpul M3 Magazine .223 / 5.56 NATO – MAG233

Out of Stock
Orders will Ship within 1 Business Day
Backed by Magpul Warranty!
TOP ADD-ON'S
Magpul Ranger Plate Magazine Floorplate 3 pack Black PMAG M3 - .223 / 5.56 NATO - MAG561-BLK

Magpul Ranger Plate 3 pack for .223/5.56 M3 PMAGs

$23.67
Birchwood Casey Shoot-N-C Target - Round Bullseye - 12" - 5 Targets

Birchwood Casey Shoot-N-C Targets - 5 Pack with 12" Round Bullseye

$9.99

A Tough and Reliable 40-Round Magazine for Long-term Use!

The 40 Round PMAG Magpul M3 incorporates a new material technology for enhanced strength and reliability on military performance specifications. It features a long-life USGI-SPEC stainless steel spring, a four-way anti-tilt follower and a constant-curve internal geometry for reliable round feeding.

It also features a new, easy to disassemble flared floorplate that aids extraction and handling of the magazine while providing improved drop protection.

40 Round PMAG: Magpul M3 .223 / 5.56 NATO – MAG233

With Slimmer Design For Better Compatibility

The 40 Round PMAG Magpul M3 is manufactured slimmer for better compatibility with tight double and triple magazine pouches. It has a redesigned bolt catch notch in the rear of the magazine that provides increased bolt catch clearance.

Low profile ribs and new aggressive front and rear texture give positive control in all environments. 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.

Designed with modified internal and external geometry, it 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.

Reliable and Durable Construction

  • Next-generation impact and crush resistant polymer construction
  • Long-life stainless steel spring
  • Ribbed gripping surface and new aggressive front and rear texture for positive magazine handling
  • Modified dimensions allow for wider compatibility with non-Colt-spec platforms

Increase Reliability

  • Constant-curve internal geometry for smooth feeding
  • Anti-tilt, self-lubricating follower for increased reliability
  • 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

Specifications:

  • Caliber: .223 / 5.56 NATO
  • Platform: AR15, M4, M16
  • Capacity: 40
  • Made in the USA

Products available on this page:

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Magpul Warranty Information

If you ever experience an issue with a Magpul product at any time, regardless of where it was purchased, please contact us directly and we’ll do everything reasonable to help you.

To make a return, please take the following steps:

  • BEFORE returning any products, please contact us first to receive an RMA number (Return Merchandise Authorization) and prominently write it on the outside of the package. Packages will not be accepted without an RMA.
  • Include a note with your name, shipping address, phone number and email, RMA number, and reason for the return (including, if applicable, information about the firearm, ammunition, and usage environment for defective returns). Do not send ammunition.
  • Wrap the item with quality padding and place it in the original packaging or in an appropriate box for shipping.
  • A UPS shipping label will be provided in your shipment. If using the original packaging, remove or cover the original shipping label. Tape the preprinted return shipping label to the outside of the box. Drop package at an official or authorized UPS drop-off location.
  • All refunds will be applied to the credit card used for the original purchase. You should allow one to two billing cycles for the refund to appear on your statement.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 25 reviews
100%
(25)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
F
Fernando Donaldson
Great Price and Fast delivery

Great quality magazine. Will be ordering more soon.

J
Johnnie J
Good Magazine

Love the magazine's very good quality.

Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!

A
Alex C
Great magazine

Great mag, fits well and comes with dust cover, came in two days

R
Robin Ekler
Perfect

Dont get any better. Most likely good investment as well

Thanks for sharing your feedback, Robin. We're glad you're satisfied with your purchase. Cheers!

A
Aaron Nowak

40 Round AR 15 PMAG: Magpul M3 .223 / 5.56 NATO – MAG233

Customers who viewed this item also viewed these products

Magpul Ranger Plate Magazine Floorplate 3 pack Black PMAG M3 - .223 / 5.56 NATO - MAG561-BLK

Magpul Ranger Plate Magazine Floorplate 3 pack Black PMAG M3...

$23.67
3-Pack Of Reliable Protection For Your Magazines The Magpul Ranger Plate Magazine Floorplate M3
Magpul PMAG M3 10 Round Magazine .223 / 5.56 NATO Black - MAG559-BLK

Magpul PMAG M3 10 Round AR 15 Magazine .223 /...

$14.20
Next Generation PMag With Wide Compatibility On Non-AR Platforms This Magpul PMAG M3 is
Magpul PMAG M3 20 Round Magazine .223 / 5.56 NATO Black - MAG560-BLK

Magpul PMAG M3 20 Round AR 15 Magazine .223 /...

$15.49
100% Tough, Durable and Reliable – Great Addition to Your Build The Magpul PMAG
Magpul PMAG M3 30 Round Window - .223 / 5.56 NATO - MAG556

6-Pack - Magpul PMAG M3 30 Round Magazine w/Window -...

$103.99$93.59
Buy In Bulk And Save! This Pack Includes Six (6) M3 30-Round Window Pmags
Magpul PMAG M3 10 Round Magazine .223 / 5.56 NATO Black - MAG559-BLK

3-Pack - Magpul PMAG M3 10 Round AR 15 Magazine...

$42.99
Buy in Bulk And Save! This Pack Includes Three (3) M3 10-Round Pmags This
Magpul PMAG M3 20 Round Magazine .223 / 5.56 NATO Black - MAG560-BLK

3-Pack - Magpul PMAG M3 20 Round AR 15 Magazine...

$42.99
Buy In Bulk And Save! This Pack Includes Three (3) M3 20-Round Pmags The
Magpul PMAG M3 10 Round Magazine .223 / 5.56 NATO Black - MAG559-BLK

6-Pack - Magpul PMAG M3 10 Round AR 15 Magazine...

$84.99$76.49
Buy in Bulk And Save! This Pack Includes Six (6) M3 10-Round Pmags This
Magpul PMAG M3 30 Round - .223 / 5.56 NATO - MAG557

Magpul AR-15 PMAG M3 30 Round Magazine - .223 /...

$14.20
Next Generation 30-Round Magazine Enhanced For Strength And Reliability The Magpul PMAG M3 is
Magpul PMAG M3 30 Round Window - .223 / 5.56 NATO - MAG556

Magpul PMAG M3 30 Round Magazine w/Window - .223 /...

$17.49
The All-in-One 30-Round Magazine For Absolute Performance The Magpul PMAG M3 Window is a
Magpul PMAG M3 20 Round Magazine .223 / 5.56 NATO Black - MAG560-BLK

6-Pack - Magpul PMAG M3 20 Round AR 15 Magazine...

$84.99$76.49
Buy In Bulk And Save! This Pack Includes Six (6) M3 20-Round Pmags The
Magpul PMAG M3 30 Round - .223 / 5.56 NATO - MAG557

6-Pack - Magpul PMAG M3 30 Round Magazine - .223...

$80.99$72.89
Buy In Bulk And Save! This Pack Includes Six (6) M3 30-Round Pmags The
Magpul PMAG M3 30 Round Window - .223 / 5.56 NATO - MAG556

3-Pack - Magpul PMAG M3 30 Round Magazine w/Window -...

$51.99$46.79
Buy In Bulk And Save! This Pack Includes Three (3) M3 30-Round Window Pmags

Frequently purchased together

Magpul M-LOK Quick Detach Sling Attachment - MAG606

Magpul M-LOK Quick Detach Sling Attachment - MAG606

$20.49
QD Forward Sling Attachment Point For M-LOK Handguards And Forends The Magpul M-LOK Quick
Magpul Bad Lever | Battery Assist Device for AR-15 – MAG980

Magpul Bad Lever | Battery Assist Device for AR-15 –...

$29.49
Speed Up The Bolt Catch with this B.A.D. Lever from Magpul The B.A.D. Lever
Angled Foregrip: M-LOK Handguards for AR-15

Magpul M-LOK AFG Angled Foregrip – MAG598

$25.60
Maximize Accuracy with Ultimate Control and Precision! The Magpul M-LOK AFG (Angled Fore Grip)
Mag-Pod Base Plate for Gen 3 PMAG (3-Pack)

MagPod Monopod for Magpul Gen M3 PMAG - 3-Pack

$24.95
Get Stability and Save Weight with a MagPod Monopod for Magpul M3 PMAGs Made
Rail mounted USB-C rechargeable flashlight

Streamlight Protac 2.0 Rechargable 2000 Lumen Weapon Light Kit

$183.26$164.93
Streamlight 2000 Lumen Rechargeable Light Kit The Streamlight Protac 2.0 Weapon Light Kit features
Maglula Magazine Loader and Unloader Gen 2 - AR-15 223 Remington 5.56x45mm - AT3 Tactical

Maglula Magazine Loader and Unloader Gen 2 - AR-15 223...

$26.95
Save Time & Hassle With The Maglula Magazine Loader/Unloader – .223/5.56 Rem Since 2001,

B5 Systems Bravo AR-15 Furniture Kit - Stock, Carbine M-LOK...

(no reviews yet)
$104.99
B5 Systems Furniture Kit for AR-15 B5 Systems makes some of the toughest, most
Magpul Ranger Plate Magazine Floorplates - 3/Pack - for .223 Rem / 5.56 NATO - MAG020 - BLK

Magpul Ranger Plate Magazine Floorplates - 3/Pack - for .223...

$23.67
Get Better Control Of Your Mags For Better Performance If you’re looking for an

Breek Arms WARHAMMER Mod 2 Ambidextrous AR 15 Charging Handle

Ultra-Slick, Ultra-Affordable Ambidextrous AR15 Charging Handle If you’re looking for a charging handle upgrade
Magpul Ranger Plate Magazine Floorplate 3 pack Black PMAG M3 - .223 / 5.56 NATO - MAG561-BLK

Magpul Ranger Plate Magazine Floorplate 3 pack Black PMAG M3...

$23.67
3-Pack Of Reliable Protection For Your Magazines The Magpul Ranger Plate Magazine Floorplate M3
Magpul Magazine Assist 3-Pack for AR-15 .223/5.56 NATO - MAG001 - BLK

Magpul Magazine Assist 3-Pack for AR-15 .223/5.56 NATO - MAG001

$9.99
Improve Your Speed And Control When Changing Magazine! The Magpul Magazine Assist is designed
Magpul RVG Rail Vertical Grip - MAG412

Magpul RVG Rail Vertical Grip - MAG412

$23.70
Lightweight and Cost-effective – Better Grip And Control Of Your Rifle The Magpul RVG

Questions & Answers

Don't see the answer
you're looking for?

Loading questions...