This is a Magpul® D-50 EV9 CZ® Scorpion 9mm Drum Magazine with a 50-Round Capacity.
Boasting a massive 50-round capacity, the Magpul D-50 EV9 drum magazine is the perfect high-capacity solution for your CZ Scorpion. Building on the design pioneered by the original D-60 drum, the D-50 EV9 utilizes Magpul’s tough next-gen polymer for increased durability. Thanks to the stainless-steel internals, the magazine is corrosion resistant and can be stored loaded without any loss of function. A viewing window built into the rear of the magazine allows for precise monitoring of remaining ammunition. The high visibility follower further assists in rapid ammo checks. The D-50 also includes convenient features like a paint pen dot matrix for easy marking and a ratcheting loading lever to take the strain off your fingers when loading.