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This 21-round drum magazine is purpose-built for anyone who wants to maximize their time on target without frequent reloads. Whether you're running extended training sessions, competing in 3-gun matches, or simply prefer maximum capacity for range days, this drum delivers serious firepower in a manageable package.
The drum combines a polymer construction for the main body with a steel magazine tower for structural integrity where it matters most. A translucent rear cover lets you visually confirm your round count on the fly, which is genuinely useful when you're running hard. The black finish won't show dust and scratches like lighter colors would, and it pairs well with just about any shotgun platform. Loading can be tedious with any 21-round magazine, so Derya included a hand-crank assist that makes filling it up faster and more efficient than hand-loading alone.
This magazine works across multiple platforms. Beyond the Derya DY12, you can use it with the MKA1919, VR80, X12/F12, Boss, and AR12 shotguns. That versatility matters if you ever change platforms or run different guns at the range. Real-world testing shows it cycles reliably with quality ammunition, though you'll get the best results feeding it smooth-hulled shells like Federal Action Shotgun loads specifically engineered for mag-fed shotguns. Break-in is normal with high-capacity drums, and feed issues tend to decrease after a few hundred rounds and regular cleaning.
Derya backs this with a Limited Lifetime Warranty. It's a solid piece of gear that can handle the punishment of extended shooting sessions. Regular maintenance after each range trip will keep it functioning smoothly, especially in dusty environments.
Yes. This drum is compatible with several popular AR-platform 12-gauge shotguns including the MKA1919, VR80, X12/F12, Boss, and AR12. Check your specific shotgun model to make sure it uses the same magazine interface as the DY12 before purchasing.
For best results, use quality shotgun rounds with smooth hulls in the 1,250 fps or higher velocity range. Premium loads engineered specifically for magazine-fed shotguns like Federal Action Shotgun tend to feed more reliably than budget options. Stick with high-brass hunting or defensive loads, and avoid cheap low-velocity rounds that may not cycle the action properly.
The magazine includes a hand-crank load assist that makes filling all 21 rounds faster than loading by hand alone. You simply crank the mechanism as you feed rounds into the drum. It's a practical feature when you need to refill the magazine multiple times during a range session.
Most users report solid performance with quality ammunition after a short break-in period. Initial feed issues sometimes occur but typically decrease with use and proper cleaning. Regular maintenance between range trips is recommended, especially in dusty or dirty shooting environments, to keep it running smoothly.
| UPC | 850067243151 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | D055039 |
| Caliber/Gauge | 12 Gauge |
| Capacity | 21 |
| Color | Black |
| Model | |
| Package Height | 4.5 |
| Package Width | 7.3 |
| Product Type | Accessory-Magazines |
| Shipping Weight | 2.95 |
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