Description
The Hexmag shorty 20-round magazine gives you a lower profile without sacrificing reliability or capacity. Instead of running a full 30-rounder that requires extra support off the bench or gets cumbersome in tight spaces, this mag brings exactly what you need to the table. It seats smoothly, feeds consistently, and the smaller footprint makes a real difference when you're working from a rest or bipod.
What Makes This Shorty Work
The magic here is in the details. Hexmag built this with their proprietary PolyHex2 composite material and added a redesigned feed lip geometry that just works across different rifle platforms. The heat-treated stainless steel spring holds up to extended storage without losing tension. You get a deep catch pocket for solid locking behavior and stripper clip guides so you're not fumbling with reloads. The hexagonal pattern on the body isn't just for looks, either—it gives you actual grip purchase even when your hands are wet or dusty.
Built for Easy Maintenance
One of the best features here is the tool-less design that lets you pop the baseplate off without hunting for a punch or tiny screwdriver. You can strip it down for cleaning in seconds, swap out the follower for a different color if you want to ID different ammo types through their HexID system, or customize it with their optional grip tape if you want extra texture. It's the kind of thoughtful engineering that saves you time in the field.
Shorty Profile, Full Reliability
This mag seats easily on a closed bolt and doesn't have the feeding issues some polymer mags develop over time. Multiple users report thousands of rounds through these without a single problem. Whether you're running from the bench, using it in an AR pistol build, or just prefer the reduced profile on your rifle, the 20-round capacity hits that sweet spot between practical shooting and tight handling.
Key Specifications
- Manufacturer: Hexmag (SENTRY Products Group)
- Model Number: HX20AR15BLK
- UPC: 840239707406
- Capacity: 20 rounds
- Caliber: 5.56x45mm NATO (.223 Remington, .300 AAC Blackout)
- Platform: AR-15/M4/M16 and compatible MSR systems
- Material: PolyHex2 Advanced Composite (polymer body)
- Color: Black
- Spring: Heat-treated stainless steel
- Follower: Anti-tilt polymer with high-visibility color
- Design Features: Tool-less baseplate removal, stripper clip guides, HEXTURE grip pattern, deep catch pocket
- Made In: USA
What’s Included
- One Hexmag 20-round shorty magazine
Frequently Asked Questions
Will this Hexmag shorty fit all AR-15 rifles?
This 20-round shorty is designed for STANAG 4719-compliant AR-15 platforms, which covers the vast majority of modern AR-15s including standard commercial builds. The redesigned feed lips give solid compatibility across different manufacturers. If you have an older first-generation AR or a non-standard magwell, you might want to verify fitment before ordering, but it works with virtually every current AR-15 on the market.
What's the advantage of a shorty magazine over standard 30-rounders?
The shorter profile makes a real difference when you're shooting from a bench rest or bipod because you don't need extra height to clear the shooting surface. It's also less cumbersome in tight spaces and vehicle-based setups. You're still getting 20 solid rounds for most applications—plenty for range work, hunting, or training without the bulk of a full-size magazine.
Can I use the HexID color system with this magazine?
Yes. The tool-less baseplate design lets you remove the follower and swap in different HexID colors to organize your magazines by caliber or ammunition type. The Hexmag HexID colored followers and baseplates are sold separately, but the shorty is fully compatible with the system if you want to set it up that way.
How does the tool-less design actually work?
Instead of needing a punch or tool to remove the baseplate, the hexagonal design on the magazine body itself catches a lip on the baseplate so you can pop it off by hand. It makes field stripping for cleaning or maintenance much faster and more convenient than traditional magazines that require a separate removal tool.





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