Product Description
Magpul PMAG 20 Round AR-15/M4 Gen M3 5.56×45 / .223 Magazine
Product Specification
The Magpul PMAG 20 Round Gen M3 is a polymer magazine designed for platforms chambered in 5.56x45mm NATO and .223 Remington. It is the third-generation M3 version of the PMAG design, incorporating reinforced polymer construction and a number of design features intended to support consistent magazine operation.
Key Specifications
- Manufacturer: Magpul
- Model: PMAG 20 Gen M3
- Capacity: 20 rounds
- Calibre: 5.56x45mm / .223 Remington
- Magazine Type: Detachable polymer magazine
- Generation: Gen M3
- Construction: Reinforced polymer
- Spring: Stainless steel
- Follower: Four-way anti-tilt follower
- Internal Geometry: Constant-curve design
- Exterior: Low-profile ribs with textured front and rear surfaces
- Over-Travel Stop: Integrated lug on the magazine spine
- Marking: Paint dot matrix for identification and marking
Design Features
The PMAG 20 Gen M3 uses reinforced polymer construction with a stainless-steel spring and anti-tilt follower. Its constant-curve internal geometry is designed around the magazine’s intended cartridge configuration.
The exterior incorporates textured surfaces and low-profile ribs, while the rear spine includes an over-travel stop. A paint dot matrix is also provided for magazine identification.
Compatibility
According to the supplied manufacturer information, the magazine is compatible with AR-15-pattern platforms and is also specified for use with platforms including the HK416, SA-80, FN SCAR and IAR, subject to the specific firearm manufacturer’s compatibility requirements.
Calibre Information
- 5.56x45mm NATO
- .223 Remington
This product is intended for use only with firearms and ammunition for which the magazine is specifically compatible. Users should check the firearm manufacturer’s specifications before use and comply with all applicable laws and regulations.










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