First Look: Magpul PMAG 20 AR 300 B Gen M3

by
posted on January 14, 2021
magpul-20pmag-300.jpg
Magpul recently introduced the PMAG 20 AR 300 B Gen M3, a purpose-built magazine designed for the .300 BLK. Although it is similar to the PMAG 30 AR 300 B, the new variant is said to be more maneuverable thanks to a more compact construction that is more concealable and pairs nicely with small-format firearms. 

Fans of the .300 BLK have long had to use magazines designed for another cartridge, which limits compatibility and overall performance. What Magpul set out to do with the new PMAG 20 AR 300 B Gen M3 was build a .300 BLK magazine specifically for the varied projectile weights and profiles of the cartridge.

To help shooters avoid the problem of inserting a 5.56 mag into a .300 BLK firearm, Magpul designed the new magazine with distinct ribbing and a smoother upper half texture to provide shooters with a distinct visual and tactile difference from any other PMAG. This is said to help prevent cross-loading and the catastrophic results that could follow. 

The new Gen M3 mag is also said to aid in the performance department, thanks to impact- and crush-resistant polymer, aggressive front and rear texturing, a slim floor plate, paint pen dot matrix for identification marking, and a dust/impact cover. 

Features:
  • 20-round capacity
  • Optimized for maximum reliability using 300 BLK ammunition
  • Utilizes all PMAG Gen M3 556/300B compatible accessories
  • Unique rib design to provide instant differentiation from 5.56 mags in all conditions 
  • Compatible with STANAG mag well rifles chambered in .300 BLK 
  • MSRP: $14.95 

Latest

PDW with magazine
PDW with magazine

Review: Maxim PDX Pistol

The Maxim PDX line is, in many ways, the ultimate expression of the PDW concept. It’s a small, easy to handle AR-pattern firearm that uses either Maxim’s superb PDW brace in the pistol model or a collapsible stock when sold as a short barrelled rifle.

First Look: SIG Sauer Custom Works Spectre P320 XCarry & P365XL Pistols

With the new SIG Custom Works Spectre P320 XCarry and P365XL, the Spectre Series from SIG Sauer has a new look. 

EAA Celebrates 30th Anniversary

Florida-based European American Armory Corporation (EAA) is celebrating its 30th anniversary this year.

First Look: SAR9 Compact Handgun

Sarsilmaz is one of the world’s largest manufacturers of firearms, and now the company is rolling out its new SAR9 Compact pistol.

Mossberg Maverick 88: The Affordable Self-Defense Shotgun

The Maverick 88 is a no-frills cousin of Mossberg’s legendary Model 500 pump-action shotgun, and although the two guns are aesthetically and mechanically similar they are not identical guns.

5 Great Concealed Carry Gear Items for the Fall

As the seasons change, so must your carry wardrobe. Here are products to keep you comfortable as the leaves begin to fall.

Interests



Get the best of Shooting Illustrated delivered to your inbox.