Magpul PMAG M3 30 Round Magazine 300BLK – MAG800-BLK

SKU: MAG800-BLK

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Purpose-Designed Magazine For Rifles Chambered In 300 Blackout

The Magpul PMAG M3 300BLK is a next-generation 30-round magazine chambered in 300 AAC Blackout for AR15/M4 compatible weapons. Along with an 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.

The PMAG 30 AR 300 B GEN M3 is a purpose-designed magazine for rifles chambered in 300 Blackout and since its inception, 300 BLK shooters have had to use a magazine designed for another cartridge, limiting its ultimate performance and compatibility.

A Dedicated 300BLK Magazine

One of the key features of 300 BLK is the compatibility with 5.56x45mm parts, but with the magazine, it is a compromise to do so. Due to the wide variety of projectile weights and profiles potentially decreasing overall reliability, a dedicated 300 BLK magazine was a logical step for the PMAG line.

The Magpul PMAG M3 300BLK also offers a safer way to feed your 300 BLK rifle. It’s distinct rib design and smoother upper-half texture provide the shooter a distinct visual and tactile difference from any other PMAG to mitigate dangerous cross-loading issues.

Along with optimized 300 Blackout performance, the PMAG M3 300BLK incorporates all of the GEN M3 features such as our next-generation impact and crush resistant polymer, aggressive front and rear texture, an easily removable slim floor plate, a paint pen dot matrix for marking and identification, and a dust/impact cover.

Features:

  • 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 additional protection in storage and transit

Specifications:

  • Caliber: 300 Blackout
  • Capacity: 30
  • Finish: Black
  • Model: PMAG
  • Material: Polymer
  • Model Fit: AR
  • Capacity: 30



Have Questions About this Product?


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 12 reviews
92%
(11)
8%
(1)
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T
Trey Crowe
300 blkout mag

Works perfect fits great

Thanks for the review. We're glad to hear that the magazine works great and fits perfectly.

J
Jeff Guerrero
Great product

Just what i needed forbmy latest build

Thank you for the feedback! We're glad to hear you're enjoying the magazine.

m
mario torraca
556 nato /300 blk

day work good

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

J
Juan Perez

Magpul PMAG M3 30 Round Magazine 300BLK - MAG800-BLK

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

J
J.W.
300 BO Magazine

Looks to be well made & sturdy.. only shot 50 rds so far through the magazine. No problems at all !! I did use a grey sharpie to bring out the caliber marking on the magazine.

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