The Magpul MAG233-BLK PMAG 40RD is a high-capacity polymer magazine built to maximize your AR-15/M4 rifle’s performance in tactical, range, or competitive settings. Designed for .223 Remington/5.56 NATO, this magazine provides extended firepower, holding 40 rounds while maintaining exceptional reliability and durability.
Constructed from impact-resistant polymer, the PMAG 40 is lightweight yet rugged enough to endure heavy use and harsh conditions. The integrated MagLevel™ windows on both sides allow for a quick visual check of your remaining ammunition, while the self-lubricating follower and constant-curve internal geometry ensure smooth and consistent feeding.
The PMAG 40 features a flared floorplate for better handling and easier disassembly, as well as an over-insertion stop to protect your rifle’s receiver. Trusted by professionals and enthusiasts alike, this magazine delivers unmatched capacity and reliability for when every round counts.
Manufacturer Specs
- Caliber Compatibility: .223 Remington / 5.56 NATO
- Capacity: 40 rounds
- Material: Impact-resistant polymer
- Color: Black (BLK)
- Weight: Approx. 7 oz
- Platform Compatibility: AR-15, M4, and similar platforms
- Additional Features: MagLevel™ windows, flared floorplate, over-insertion stop
Key Features
- Extended Capacity: 40-round magazine for maximum firepower in tactical and range use.
- MagLevel™ Windows: Dual transparent windows for quick and easy round count visibility.
- Durable Construction: Impact-resistant polymer ensures long-lasting reliability in tough conditions.
- Smooth Feeding: Self-lubricating follower and constant-curve internal geometry provide consistent performance.
- Enhanced Handling: Flared floorplate improves grip and ease of magazine changes.
Frequently Asked Questions (FAQs)
Q: Is this magazine compatible with all AR-15 platforms?
A: Yes, the PMAG 40 is designed for AR-15, M4, and similar platforms chambered in .223 Remington/5.56 NATO.
Q: Does the increased capacity affect reliability?
A: No, the PMAG 40 is engineered for consistent feeding and reliability, even with its extended capacity.
Q: How do the MagLevel™ windows work?
A: The transparent windows on both sides of the magazine allow you to quickly check the remaining ammunition without removing the magazine from your rifle.
Q: Does this magazine include a dust cover?
A: No, the PMAG 40 does not include a dust cover. For dust cover compatibility, consider the Magpul GEN M3 series.





