Hexmag HX Shorty Magazine AR-15 223 Remington, 5.56x45mm, 300 AAC Blackout Polymer

The Hexmag HX Shorty Magazine is a compact AR-15 magazine designed for shooters who need reliable feeding in 5.56x45mm NATO, .223 Remington, or 300 AAC Blackout without the bulk of a standard 30-rounder. Built from durable polymer, this 20-round magazine strikes a practical balance between capacity and maneuverability—ideal for tactical drills, competition, hunting in tight spaces, or any scenario where a slimmer profile matters. Whether you're running an intermediate cartridge build or just prefer the handling of a lighter setup, Hexmag's proven engineering keeps rounds feeding smoothly when it counts.

Hexmag magazines are known for solid construction and reliable performance across the board, and the HX Shorty is no exception. The polymer construction keeps weight down while maintaining durability, and the 20-round capacity gives you meaningful firepower without the footprint penalty of full-size mags. Pair it with your go-to AR platform and trust it to perform at the range, in the field, or at a match.

If you run multiple AR uppers or calibers within the 5.56/.223/300 Blackout family, the HX Shorty's versatility means one magazine works across your battery. Stock a few—they're affordable enough to rotate in and out of your mag pouch rotation.

Key Features

• 20-round capacity optimized for compact handling and maneuverability
• Durable polymer construction rated for reliable performance
• Compatible with AR-15 platforms chambered in 5.56x45mm NATO, .223 Remington, and 300 AAC Blackout
• Low-profile design reduces overall rifle footprint
• Proven Hexmag reliability and quality control

Specifications

Frequently Asked Questions

Will this magazine work with my AR-15 in .223 Remington and 300 AAC Blackout?

Yes. The HX Shorty is rated for 5.56x45mm NATO, .223 Remington, and 300 AAC Blackout. If your AR is configured for one of these cartridges, this magazine will feed reliably.

What's the advantage of a 20-round magazine over a standard 30-rounder?

The 20-round capacity reduces overall rifle length, magazine footprint, and weight—valuable for tactical work, hunting in tight cover, or any shooting where a slimmer profile improves handling and maneuverability. You're trading maximum capacity for practicality and control.

Is the polymer construction durable enough for regular use?

Hexmag's polymer is engineered for reliable, repeated use. The HX Shorty is built to the same durability standards as Hexmag's other offerings and will handle typical range, hunting, and field work without issue.

Can I use this magazine across different AR platforms if they all share the same caliber?

Yes, the HX Shorty will fit any standard AR-15 magazine well. As long as your rifles are chambered in compatible calibers (5.56 NATO, .223 Rem, or 300 Blackout), this magazine will work across your battery.