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The .450 Bushmaster brings serious hunting power to the AR-15 platform, but finding a magazine that feeds reliably isn't straightforward. Standard AR magazines often struggle with the straight-wall cartridge geometry. That's why ASC engineered this 5-round magazine from the ground up for .450 Bushmaster.
ASC handles the feeding challenge head-on using enhanced anti-tilt polymer followers and carefully designed feed geometry that keeps rounds stable and properly aligned. The magazine body is machined from .020 gauge 410 stainless steel and heat treated for strength that holds up through hundreds of cycles. The Marlube finish is ASC's proprietary wear-in coating that self-lubricates and actually improves over time rather than wearing away with use.
Manufactured 100 percent in the USA, this magazine won't swell in heat or crack in cold weather the way polymer magazines sometimes do. The stainless construction resists corrosion with chemical treatment for long-term reliability whether you're hunting, running drills at the range, or storing it for months between seasons. Chrome silicon springs work consistently cycle after cycle without fatigue.
The 5-round capacity fits the same footprint as factory magazine bodies, so it seats and cycles just like original equipment. Supporting ribs inside the magazine prevent double-feeds and malfunctions caused by improper round stacking. ASC backs this magazine with a Limited Lifetime Warranty covering defects in materials and workmanship under normal use.
No. This is a purpose-designed magazine built specifically for .450 Bushmaster with engineered feed geometry and follower design that won't work in standard .223 bodies. Using a .223 magazine body with an aftermarket follower often leads to feeding issues. The ASC magazine is designed from the ground up for the straight-wall cartridge.
The magazine ships ready to use out of the box. Most users report reliable feeding without any modifications. That said, the .450 Bushmaster is a finicky round in AR platforms, so testing before relying on it for hunting is wise. If you do experience any issues, ASC's Limited Lifetime Warranty covers defects.
ASC stainless steel magazines won't swell in heat or crack in cold, making them more reliable alternatives to polymer for long-term field use. Aluminum magazines are lighter and less expensive, but stainless offers better corrosion resistance and durability for serious hunting applications.
These ASC magazines are designed specifically for .450 Bushmaster. While some retailers list compatibility with .458 SOCOM, feed geometry differs between cartridges, so verify compatibility with your specific upper receiver before relying on it.
| UPC | 818805010601 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 5-450-SS-BM-ASC |
| Caliber/Gauge | .450 Bushmaster |
| Capacity | 5 |
| Color | Black |
| Product Type | Magazine |
| Quantity | 1 |
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