Magpul PMAG Gen M3 AR-15 .223/5.56 NATO 40-Round Rifle Magazine, Black

Overview

The Magpul PMAG 40 AR/M4 GEN M3 Magazine (MAG233-BLK) is a rugged, next-generation 40-round polymer magazine designed for AR15/M4 platforms and compatible systems. Engineered for performance and durability, this magazine incorporates advanced materials, enhanced internal geometry, and a suite of reliability-driven features to exceed rigorous military specifications. Whether on the battlefield or the range, the PMAG GEN M3 delivers unmatched reliability and ease of use.

Key Features

• 40-round capacity for 5.56 NATO, .223 Remington, and .300 BLK

• Durable, impact-resistant polymer construction

• Compatible with AR15, M4, M16, HK416, FN SCAR MK16/16S, SA-80, IWI Tavor, and more

• Self-lubricating, four-way anti-tilt follower

• Constant-curve internal geometry for consistent, reliable feeding

• Long-life USGI-spec stainless steel spring

• Redesigned bolt catch notch for improved clearance

• Over-travel stop prevents over-insertion

• Aggressive front and rear texturing for secure handling

• Ribbed gripping surface for positive control

• Flared, easy-to-remove floorplate for enhanced handling and cleaning

• Integrated paint pen dot matrix for identification marking

• Includes pop-off impact/dust cover

• Made in the USA

Specifications

• Caliber: 5.56 NATO / .223 Rem / .300 BLK

• Capacity: 40 rounds

• Weight: 0.4 lbs

• Length (Max): 9.7 in

• Finish: Black

• Material: Advanced polymer

• Platform Fit: AR15, M4, M16, SA-80, HK416, FN SCAR MK16/16S, IWI Tavor, and similar STANAG 4179 platforms

• Style: Detachable magazine

• Quantity: 1

• MPN: MAG233-BLK

• UPC: 873750009698

Applications

Ideal for tactical operations, competitive shooting, home defense, and extended-range sessions where increased capacity and enhanced durability are essential.

Additional Features

• Slimmer floorplate for compatibility with tight double/triple mag pouches

• Tool-less disassembly for quick maintenance

• Designed to function reliably across a variety of non-Colt-spec platforms

• Textured body improves handling in adverse conditions