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Magpul MAG233-BLK PMAG GEN M3 223 Rem/5.56x45mm AR15, M4 40rd Detachable Magazine
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$22.99
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SKU: MAG233-BLK-873750009698
Overview
Built for AR15/M4-compatible rifles, this polymer magazine is intended for shooters who want a 40-round option in 5.56x45 NATO (.223 Remington). Its design includes a long-life stainless steel spring, four-way anti-tilt follower, and constant-curve internal geometry, along with tool-less disassembly for easier cleaning and maintenance. A bolt catch notch, over-travel stop, and included pop-off impact/dust cover add practical features for use at the range or in the field. Low-profile ribs, aggressive texture, and a flared floorplate are aimed at improving handling and magazine changes, while the slimmer profile may help with compatibility in tighter pouches.
Why Hunters Choose the Magpul
40-round Capacity
Supports extended use before reloading
Tool-less Disassembly
Simplifies cleaning and routine maintenance
Four-way Anti-tilt
Follower and constant-curve geometry support
Included Impact/dust
Cover helps protect stored magazines
Flared Floorplate
Aids handling and extraction during
Key Features
- 40-round polymer magazine for AR15/M4 compatible weapons
- Chambered for 5.56x45 NATO and .223 Remington
- Long-life stainless steel spring and four-way anti-tilt follower
- Constant-curve internal geometry supports feeding
- Tool-less disassembly simplifies cleaning and maintenance
- Included impact/dust cover helps protect the top cartridge during storage and transit
- Flared floorplate aids extraction and handling
Best Used For
- Hunters and range users needing a 40-round AR-15/M4 magazine for 5.56x45mm or .223 Remington.
- Users who want tool-less disassembly for easier cleaning and routine maintenance.
- Shooters using compatible Colt-spec AR15/M4 platforms and select other listed weapons.
- Those needing easy magazine identification with a paint pen dot matrix on the body.
- Users storing or transporting magazines who want the included dust cover for added protection.
Specifications
| Blade Finish | Black |
|---|---|
| Caliber | 223 Rem/5.56x45mm |
| Capacity | 40 |
| Country Of Origin | USA |
| Magazine Type | Detachable Magazine |
| Material | Polymer |
| Model | PMAG |
| Model Fit | AR-15, M4 |
| Model Number | MAG233-BLK |
Pros
- 40-round capacity supports extended use before reloading.
- Tool-less disassembly simplifies cleaning and routine maintenance.
- Four-way anti-tilt follower and constant-curve geometry support feeding.
- Included impact/dust cover helps protect stored magazines from debris.
- Flared floorplate aids handling and extraction during magazine changes.
- Compatible with AR-15 and M4 platforms, with broader weapon support noted.
Considerations & Trade-offs
- The 40-round capacity offers more rounds per magazine, but it also means a larger magazine profile than lower-capacity options, which can affect carry and handling.
- It is optimized for Colt-spec AR15/M4 platforms; while compatibility extends to some other weapons, fit and function should still be verified on the specific firearm.
- The slimmer flared floorplate is designed to improve compatibility with tight double and triple magazine pouches, but that same profile may feel less substantial during extraction than a bulkier baseplate.
- The included dust cover is intended for storage and transit, so it adds a small extra component to keep track of when the magazine is in use.
Suggested Comparisons
- AR-15/M4 magazines
- Higher-capacity detachable magazines
- Polymer magazines
- Magazine accessories and storage covers
Suggested Accessories
- Magazine pouch
- Dust cover
- Cleaning brush
- Range bag
Frequently Asked Questions
What caliber and capacity is this PMAG designed for?
It is listed for .223 Remington / 5.56x45mm NATO and has a 40-round capacity.
Will this magazine work with AR-15 and M4 platforms?
Yes. The product is specified for AR-15 and M4 compatible weapons, and the GEN M3 is described as optimized for Colt-spec AR15/M4 platforms.
What features are included to help with feeding and maintenance?
The description lists a long-life stainless steel spring, a four-way anti-tilt follower, constant-curve internal geometry, and tool-less disassembly for easier cleaning.
Does the magazine include any features to help with handling or identification?
Yes. It includes low-profile ribs, aggressive front and rear texture for control, a paint pen dot matrix on the bottom panel for marking, and a flared floorplate for extraction and handling.
Is there a cover included for storage or transport?
Yes. The description says an included pop-off impact/dust cover can help minimize debris intrusion and protect the top cartridge during storage and transit.