Drum Features: 3 in 1 drum. Built with an interchangeable feed tower. You can buy 1 of the 3 Black Dog Machine 50 Round drums listed below and have it work in 2 other models. All you have to do is purchase the drum tower only of the other 2 models you wish to convert your drum to.

Compatible tower kits:
10.22 Tower
S&W M&P15.22 Tower


Features: Built with an interchangeable feed tower. You can easily disassemble the drum, slide your AR-22 tower out and replace it with the new Black Dog 10-22 or S&W.22 feed towers.

Material: Polycarbonate & Glass Filled Nylon
 
We do not guarantee that the drum will work in full-auto setups.  However, many customers report that with a little fine tuning they can get the drum to work in full-auto.
 
Known-compatible conversion units, rifles & dedicated uppers  
Bear Creek Arsenal .22 LR
Ciener/Atchisson  
Model 1 Sales  
Kriss 22LR
Spikes Tactical  
Tactical Solutions  
Target Master  
SIG P522 SWAT
Kel-Tec PLR22 
Chiappa M4-22
Sig Sauer 522  
WMD Guns LLC 22LR
Rifle, MK4 Banshee .22LR NFA
Bushmaster combo kit
Nordic Components
MANY OTHER .22 ATCHISSON/CIENER STYLE CONVERSION UNITS, UPPERS & RIFLES THAT MIGHT NOT BE LISTED
Will Not work with:
Tippman Arms M4 .22
Magnum .22
S&W M&P 15 .22
H&K 416.22/Umarex
HK-416D Pistol
Colt/Umarex M-4 Carbine
M-4 OPS, M-16 Rifle
Beretta ARX160 .22LR
M-16 SPR, Rock River
Kriss and other models that may not be listed.