Description
Running a .50 Beowulf build means you need a magazine that speaks big-bore, and this one from D&H Industries is made exactly for that job. The 12.7x42mm cartridge is a wide, straight-wall round that won't double-stack like a 5.56, so this mag holds 10 rounds single-stacked and feeds them without the hang-ups you get trying to press stock 5.56 mags into service. It drops right into any standard AR-15, M16, or M4 lower, so there's no fitment guesswork.
What Sets This D&H .50 Beowulf Magazine Apart
The body is heat-treated aircraft-grade aluminum with a hard-coat anodized black finish and a black Teflon coating, so it shrugs off moisture and rough handling whether it's living in your range bag or riding along on a hunt. Inside you get a 17-7 PH stainless steel spring for consistent tension and long service life, paired with a D&H proprietary follower designed specifically for big bore cartridges. That follower is the real trick here, since it's shaped to guide those chunky .50 caliber rounds up and into the chamber the way generic followers just can't.
Built for the 12.7x42mm Round
The caliber is laser engraved right on the body, marked 12.7x42mm, which is the same cartridge sold as .50 Beowulf. If you're new to the platform, that engraving takes the guesswork out of grabbing the right mag at the bench. At roughly 8.2 inches long, it carries the same footprint you're used to from a standard AR magazine.
Range Time and Field Use
Folks who run these report clean feeding and a strong spring, which is exactly what you want out of a thumper caliber that already asks a lot of your rifle. Made in the USA, it holds up equally well punching paper at the range or loaded up for hogs and big game inside a couple hundred yards where the .50 Beowulf really shines.
Key Specifications
- Manufacturer: D&H Industries
- Manufacturer Part Number: DHT-11905-RT
- UPC: 850012639091
- Caliber: .50 Beowulf / 12.7x42mm
- Capacity: 10 Rounds
- Platform: AR-15, M16, M4
- Body Material: Heat-Treated Aircraft-Grade Aluminum
- Finish: Black Teflon Hard-Coat Anodized
- Spring: 17-7 PH Stainless Steel
- Follower: D&H Proprietary Big-Bore Black Follower
- Caliber Marking: Laser Engraved 12.7x42mm
- Length: 8.2 inches
- Country of Origin: Made in USA
What’s Included
- One D&H Industries .50 Beowulf 12.7x42mm 10-round aluminum magazine
Frequently Asked Questions
Why does this .50 Beowulf magazine only hold 10 rounds?
The 12.7x42mm case is much wider than a 5.56, so the rounds have to sit single-stacked instead of double-stacked. That drops a standard-size AR magazine body down to a 10-round capacity for .50 Beowulf. It's simply the nature of running a big-bore cartridge in the AR platform.
Will this magazine fit a standard AR-15 lower?
Yes. It's built to drop into any standard AR-15, M16, or M4 lower with no modification needed. Just make sure your rifle is set up with a .50 Beowulf barrel and the correct bolt to actually run the cartridge.
Is this the same thing as a 12.7x42mm magazine?
It is. The caliber is laser engraved on the body as 12.7x42mm, which is the metric designation for the .50 Beowulf round. Many makers use the 12.7x42mm name because the .50 Beowulf trademark is owned by Alexander Arms, but the cartridge is identical.
What makes the D&H follower better for .50 Beowulf?
D&H uses a proprietary follower shaped specifically for big-bore cartridges rather than a generic 5.56 follower. It guides the fat .50 caliber rounds up to the feed lips so they chamber smoothly instead of hanging up. Paired with the 17-7 PH stainless spring, it's what gives this mag its reliable feeding.





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