Description
The .450 Bushmaster runs on thumper-sized rounds, and a standard 5.56 mag simply won't handle that fat, straight-walled case. This D&H Tactical magazine is built specifically for the cartridge, giving your AR-15 a dependable 4-round feed that seats cleanly and drops free when you need it. It's the kind of part you install once and quit thinking about.
What Sets This .450 Bushmaster Magazine Apart
D&H stamps the body from heat-treated aircraft-grade aluminum and finishes it with a black hard-coat anodized coating, so it shrugs off scuffs, moisture, and the general beating that comes with hunting season. Inside, a corrosion-resistant 17-7PH stainless spring keeps steady tension shot after shot, and D&H's proprietary follower is shaped for the wide profile of big-bore cartridges. That follower design is a big deal on a round this large, since it keeps the stack aligned and helps avoid the nose-dive issues that plague generic mags pressed into .450 duty.
Fit and Real-World Use of the D&H .450 Bushmaster Mag
This one is made for AR-15, M16, and M4 pattern lowers chambered in .450 Bushmaster, and it drops into a standard mag well. The 4-round capacity might look modest next to a 30-rounder, but that's the nature of a straight-walled thumper cartridge, and for deer, hogs, and short-range brush hunting it's plenty. A lot of folks like that it barely protrudes past the well, which keeps things low-profile for a prone rest or a blind.
Built and Backed in the USA
D&H Tactical has earned a solid reputation at the range, in competition, and in the field, and every magazine is made in the USA to demanding spec. The caliber is laser-engraved right on the body, a small touch that saves confusion when you've got mags for more than one build floating around the safe.
Key Specifications
- Manufacturer: D&H Industries / D&H Tactical
- Manufacturer Part Number: DHT-12012-RT
- UPC: 850012639138
- Caliber: .450 Bushmaster
- Capacity: 4 Rounds
- Platform: AR-15 / M16 / M4
- Body Material: Heat-Treated Aircraft-Grade Aluminum
- Finish: Black Teflon Hard-Coat Anodized
- Spring: Corrosion-Resistant 17-7PH Stainless
- Follower: D&H Proprietary Big-Bore Follower
- Length: 4.5 in
- Marking: Laser-Engraved Caliber Logo
- Country of Origin: Made in USA
- Quantity: 1
What’s Included
- One (1) D&H Tactical .450 Bushmaster 4-round magazine
Frequently Asked Questions
Will this .450 Bushmaster magazine fit my AR-15?
Yes, it's designed for standard AR-15, M16, and M4 pattern lowers chambered in .450 Bushmaster and drops into a standard mil-spec mag well. Keep in mind it only works with rifles actually chambered in .450 Bushmaster, not a 5.56 or .223 build. If your upper is set up for the cartridge, this mag will feed it.
Why is the capacity only 4 rounds?
The .450 Bushmaster is a big, straight-walled thumper cartridge, so it takes up a lot more room in the magazine than a slim 5.56 round. Four rounds is the standard capacity for this style of mag, and for deer, hog, and brush hunting it's usually all you need. Many hunters actually prefer the shorter body since it sits low in the well.
What is the D&H .450 Bushmaster magazine made from?
The body is stamped from heat-treated aircraft-grade aluminum and finished with a black hard-coat anodized coating for wear and corrosion resistance. It uses a 17-7PH stainless steel spring and a D&H proprietary follower shaped for big-bore cartridges. It's made in the USA.
Does this magazine help prevent feeding problems with big-bore rounds?
That's the idea behind the proprietary follower, which is contoured for the wide profile of the .450 Bushmaster round to keep the stack aligned. Combined with the steady 17-7PH spring, it's built to feed those fat cases more reliably than a generic mag adapted to the caliber. Seating it firmly on a closed bolt helps as well.




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