Black Dog Machine .22 LR 50-Round Drum Magazine — Interchangeable Feed Tower
High-capacity .22 LR drum engineered by Black Dog Machine for reliable semi-auto use. The polycarbonate body and interchangeable feed tower design let you swap towers (10/22 ⇄ AR-22 ⇄ S&W .22) for broad platform compatibility.
Key Features
- Caliber: .22 LR
- Capacity: 50 rounds
- Construction: Durable polycarbonate body
- Interchangeable feed tower: Disassemble, slide out the current tower, and install a Black Dog AR-22 or S&W .22 tower as needed
- Semi-auto ready: Plug-and-play for semi-auto setups (full-auto not guaranteed)
Compatibility
Fits: Kel-Tec PLR-22, SIG 522, Tactical Solutions .22 uppers, Model 1, M&A, and Spike’s Tactical .22 kits/uppers.
Will not work with: Puma PPS50, M261, Colt or DPMS kits, Carbon 15, or the S&W M&P 15-22.
Manufacturer Tips
- Recommended ammo: Federal, CCI/Blazer, American Eagle. Use round-nose bullets; avoid hollow points for best feeding.
- Bolt drag: One feed lip is intentionally taller. Test the drum unloaded; if the bolt contacts the taller (left) lip, carefully remove a small amount of material at the indicated corner only.
- Spring tension: Feeding issues can result from tension that’s too tight or too loose. Adjust per the manual to match your rifle’s bolt speed.
- Clear rubber bands: Includes one installed band plus two spares in the box.
- Black dummy rounds: These are internal followers—do not use as ammunition.
- Rotor handling: Do not pull the rotor counter-clockwise and release; this can damage internal followers.
Download the product manual here.
