I see your 50 round drum and raise you 100 round twin drums. : r/guns
KCI 100-Round AR15/M4 Drum Magazine
KCI USA 5.56x45mm / 223 Rem 100 Round Drum at K-Var
RWB AR-15 100 Round Dual Drum Magazine .223 With Reinforced Feed Lips - Black/Black - Centerfire Systems
Beta C-Mag Mag System AR-15 9mm Luger 100-Round Drum Polymer Black
These 100 Round Drums Are Amazing - YouTube
KCI AR-15 .223 / 5.56mm 100-Round Gen 2 Drum Magazine
Dual Wielding Full Auto Glocks With 100 Round Drum Mags | An oldie but a goodie. Definitely one of the more well known videos in the stable. | By Eye Of The GNARwhal | Facebook