
Availability: In Stock
The D&H Industries AR-15 300 Blackout aluminum magazine with red follower is a purpose-built 10-round magazine for shooters running subsonic rifle loads in the 300 BLK cartridge. Whether you're working with a suppressed setup, hunting hogs and deer at close range, or testing loads at the bench, a dedicated 300 Blackout magazine ensures reliable feeding of this unique short-action round. D&H Industries magazines are known for solid construction and dependable performance—they're the kind of gear that works without fuss when you need it to.
The aluminum body keeps weight minimal, and the red follower makes it easy to identify this as a 300 Blackout magazine at a glance—handy when you're juggling multiple uppers and caliber-specific mags on a range day or in the field. The 10-round capacity suits hunters who prefer lighter, more compact loadouts or shooters operating under local magazine restrictions.
If you're building a 300 BLK upper or rounding out your magazine rotation for a modern rifle that already runs 5.56 or 7.62x39, this magazine is straightforward and reliable. Pair it with quality ammo and a properly tuned bolt carrier, and you've got one less variable to worry about.
| Brand | D&H Industries | |
| Caliber | 300 Blackout | |
| Platform | AR-15 | |
| Capacity | 10 rounds | |
| Body Material | Aluminum | |
| Follower Color | Red |
Yes. This is a standard AR-15 platform magazine; it will fit any AR-15 lower receiver. The 10-round capacity and 300 Blackout loading are the key differences—it's designed for subsonic ammunition in that cartridge.
The 300 Blackout cartridge is shorter and wider than 5.56 NATO. Using a dedicated 300 BLK magazine ensures proper feeding and reliability with subsonic and supersonic loads in that caliber. While some shooters report success with 5.56 mags in 300 BLK, a caliber-specific magazine like this one is the safer choice.
The red follower is a visual aid to help you quickly sort magazines by caliber and load, especially useful if you're running multiple AR uppers at the range or in the field.
This specific product is a 10-round magazine. D&H Industries does manufacture 300 Blackout magazines in 20- and 30-round capacities as well, but this listing is for the 10-round version.

SKU: 197549553 • Weight: 0.15oz





Availability: In Stock
The D&H Industries AR-15 300 Blackout aluminum magazine with red follower is a purpose-built 10-round magazine for shooters running subsonic rifle loads in the 300 BLK cartridge. Whether you're working with a suppressed setup, hunting hogs and deer at close range, or testing loads at the bench, a dedicated 300 Blackout magazine ensures reliable feeding of this unique short-action round. D&H Industries magazines are known for solid construction and dependable performance—they're the kind of gear that works without fuss when you need it to.
The aluminum body keeps weight minimal, and the red follower makes it easy to identify this as a 300 Blackout magazine at a glance—handy when you're juggling multiple uppers and caliber-specific mags on a range day or in the field. The 10-round capacity suits hunters who prefer lighter, more compact loadouts or shooters operating under local magazine restrictions.
If you're building a 300 BLK upper or rounding out your magazine rotation for a modern rifle that already runs 5.56 or 7.62x39, this magazine is straightforward and reliable. Pair it with quality ammo and a properly tuned bolt carrier, and you've got one less variable to worry about.
| Brand | D&H Industries | |
| Caliber | 300 Blackout | |
| Platform | AR-15 | |
| Capacity | 10 rounds | |
| Body Material | Aluminum | |
| Follower Color | Red |
Yes. This is a standard AR-15 platform magazine; it will fit any AR-15 lower receiver. The 10-round capacity and 300 Blackout loading are the key differences—it's designed for subsonic ammunition in that cartridge.
The 300 Blackout cartridge is shorter and wider than 5.56 NATO. Using a dedicated 300 BLK magazine ensures proper feeding and reliability with subsonic and supersonic loads in that caliber. While some shooters report success with 5.56 mags in 300 BLK, a caliber-specific magazine like this one is the safer choice.
The red follower is a visual aid to help you quickly sort magazines by caliber and load, especially useful if you're running multiple AR uppers at the range or in the field.
This specific product is a 10-round magazine. D&H Industries does manufacture 300 Blackout magazines in 20- and 30-round capacities as well, but this listing is for the 10-round version.
SKU: 197549553 • Weight: 0.15oz
