MAGPUL PMAG® 20 AR 300 B GEN M3™ 300 BLK

PMAG® 20 AR 300 B GEN M3™ – 300 BLK

When running a rifle chambered in 300 Blackout®, using a magazine designed specifically for that caliber is critical. The PMAG® 20 AR 300 B GEN M3™ is purpose-built to reliably feed the wide range of projectile weights and bullet profiles commonly found in 300 BLK ammunition—something standard 5.56 magazines aren’t designed to handle.

This 20-round PMAG delivers the same proven feeding performance as Magpul’s 30-round 300 BLK magazine but in a shorter, more compact body. The reduced length improves maneuverability and makes it an excellent choice for prone shooting, bench use, and compact or suppressed rifle setups.

Distinct external ribbing and a unique upper-body texture allow for instant visual and tactile identification, helping prevent cross-loading with 5.56 NATO magazines. Built with GEN M3 materials and engineering, this magazine combines impact- and crush-resistant polymer with optimized internal geometry for dependable 300 BLK performance you can trust from Magpul.

Made in the USA.

Features

• Patented internal geometry engineered to accommodate the wide variety of 300 BLK projectile weights and shapes

• 20-round capacity in a compact body for improved maneuverability and prone firing

• Shorter profile offers a more concealable option for small-format firearms

• Visual and tactile external features to clearly differentiate from 5.56 NATO PMAGs

• GEN M3 construction using durable, impact- and crush-resistant polymer

• Compatible with all PMAG accessories and Tactile Lock Plates

• Paint-pen dot matrix for easy identification

• Removable floorplate for simple cleaning and maintenance

Technical Specifications

• Caliber: .300 AAC Blackout

• Capacity: 20 rounds

• Platform: AR15 / M4 / M16

• Compatibility: Designed for 300 BLK use; compatible with most STANAG 4179 platforms including AR15/M4, FN SCAR, IWI Tavor, and similar firearms

  THIS PRODUCT IS ILLEGAL IN THE FOLLOWING AREAS:

  • California
  • Colorado
  • Connecticut
  • D.C.
  • Delaware
  • Hawaii
  • Illinois
  • Maryland
  • Massachusetts
  • New Jersey
  • New York
  • Rhode Island
  • Vermont
  • Washington
  • International, outside of the USA

   

  Paypal Restricted:

  NOTE:  PAYPAL MAY NOT BE USED TO PURCHASE THIS ITEM.  YOU WILL NOT BE ABLE TO CHECK OUT WITH THIS IN YOUR CART AND PAY VIA PAYPAL. ONLY CREDIT CARD PURCHASE IS AVAILABLE.