The Magpul PMAG 20 AR .300 BLK GEN M3 is a purpose-built magazine engineered specifically for AR-platform rifles chambered in .300 Blackout. Its 20-round capacity and compact profile are designed to enhance firearm maneuverability and reduce the operational footprint, making it a functional component for a range of applications from precision training to personal defense.
Key Features and Engineering
Dedicated .300 Blackout Design
Engineered for consistent and reliable cycling of .300 BLK cartridges, this magazine mitigates common feeding issues associated with multi-caliber magazine designs. Its internal geometry is optimized for the distinct ballistic profiles of both supersonic and subsonic .300 Blackout ammunition, ensuring precise performance.
Optimized 20-Round Compact Profile
The 20-round body offers a reduced length profile, providing distinct operational advantages. This compact form factor improves maneuverability in confined spaces, facilitates lower shooting positions, and reduces the firearm’s overall silhouette. This design maintains functional capacity while optimizing handling characteristics.
Distinct Caliber Identification
A unique ribbed exterior and distinctively smooth upper-half texture provide immediate visual and tactile differentiation from standard AR-15 magazines chambered in 5.56x45mm. This critical design feature directly mitigates the risk of hazardous cross-loading with incorrect calibers, enhancing operational safety and efficiency.
Advanced GEN M3 Construction
Constructed to GEN M3 specifications, this PMAG utilizes Magpul’s proprietary impact-resistant polymer. This advanced material, combined with proven internal geometry and a durable stainless steel spring, ensures exceptional reliability and consistent feeding performance across varied environmental and operational conditions. The anti-tilt, self-lubricating follower further contributes to dependable function.
Technical Specifications
- Magazine Type: Detachable Box Magazine
- Caliber: .300 Blackout (7.62x35mm)
- Capacity: 20 Rounds
- Platform Compatibility: AR-15 / M4 / M16 platforms chambered in .300 Blackout
- Construction Material: Proprietary Polymer
- Follower: Anti-tilt, self-lubricating
- Spring Material: Stainless Steel
- Identification Features: Ribbed texture (lower body), smooth texture (upper body)
