Out of stock
SKU: HEXHX20AR15BLK
UPC: 840239706942
MPN: HX20AR15BLK
The HEXMAG AR-15/M4/M16 Shorty magazine holds 20 rounds and runs across the .223/5.56x45mm, .300 Blackout, .458 Socom, and .50 Beowulf cartridge families on standard AR-pattern lowers. The shorter body sits well clear of a benchtop or bipod, which is why prone and precision shooters reach for it over a full 30-rounder. If you run a big-bore upper and want feeding you can count on, this is a practical capacity for the range. We stock it alongside other AR-15 rifle parts for shooters building out a complete setup.
HEXMAG molds this magazine from its PolyHex2 advanced composite, with the patented hex-pattern texture across the body for a positive grip in gloves or wet conditions. The feed lip geometry was redesigned for added strength and to handle the wide range of supported cartridges, and a heat-treated stainless steel spring keeps tension consistent through long-term loaded storage. Stripper clip guides speed up reloads at the bench, while a deep catch pocket gives the magazine a solid lockup in the well. The baseplate comes off tool-free for cleaning, and the magazine accepts HexID color identification inserts plus HEXMAG grip tape for shooters who run multiple calibers and want to keep them straight.
This is a magazine for the shooter who spends time off a tactical bipod or sandbags and doesn't want a 30-round body fouling the rest. It suits .50 Beowulf and .458 Socom builds where the larger case head benefits from purpose-tuned feed lips, and it works just as well for routine .223/5.56 range sessions. Pair it with a HexID kit to color-code calibers, and keep a few loaded for stripper-clip-fed range days. Browse our full ammunition selection and other shooting accessories to round out your kit.
It is built for AR-15/M4/M16 platforms and feeds .223/5.56x45mm, .300 Blackout, .458 Socom, and .50 Beowulf. The redesigned feed lip geometry was tuned to handle that range of cartridges in standard AR-pattern lowers.
The shorter 20-round body clears a benchtop, bipod, or sandbags more easily, which makes it the choice for prone and precision shooting. It gives a useful capacity without the full length of a 30-round magazine getting in the way of your rest.
PolyHex2 is HEXMAG's advanced composite material. The molded hex-pattern texture across the body provides a positive grip during reloads, even with gloves or in wet conditions, so the magazine stays secure when you index it into the well.
Yes. The patented tool-less design lets you remove the baseplate by hand for cleaning and spring maintenance, no punch or tools required. The heat-treated stainless steel spring is rated for extended loaded storage.
It is. The magazine accepts HexID color identification inserts so you can color-code by caliber, and it works with HEXMAG grip tape for added purchase. Both are handy if you run multiple calibers across several magazines.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
