Magpul PMAG 20 AR 300 B Gen M3 .300 BLK Magazine

The Magpul PMAG 20 AR 300 B Gen M3 is a dedicated magazine for rifles chambered in .300 AAC Blackout (300 BLK). Its 20-round capacity and compact profile provide a practical option for AR-platform rifles, while the black polymer construction delivers a durable, lightweight design.

The magazine features a ribbed exterior and smoother upper-half texture to provide a distinct visual and tactile profile for .300 AAC Blackout use. Gen M3 features include impact- and crush-resistant polymer construction, front and rear texture, a removable slim floor plate, a paint-pen dot matrix for marking, and a dust and impact cover. Made in the USA.

Key Specifications

• The magazine is designed for .300 AAC Blackout ammunition.
• It holds 20 rounds.
• The magazine is made from polymer.
• It is designed for AR-platform rifles.
• The listed make and model fit is AR-15.
• The magazine has a black color and finish.
• The product type is a rifle magazine.
• The package quantity is 1 magazine.

With dedicated .300 AAC Blackout compatibility, a 20-round format, and practical Gen M3 features, the PMAG 20 AR 300 B Gen M3 is a straightforward magazine choice for maintaining an organized AR-platform setup.

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