The MARCK-15, also known as the “Hydra”, is the base system for everything associated with the Hydra® Modular Weapon System. This configuration of the Hydra is setup as a 5.56 x 45. It includes the Hydra® Modular Lower Receiver with an AR Magazine Well, an AR Magazine, the Hydra® Quick Change Barrel Upper Receiver (QCB-D), a 16-inch 5.56 Barrel with a Low-Profile Gas Block, underneath an 11.5″ transformable handguard. A Hydra® Modified Bolt Carrier with a 5.56 Bolt and Firing Pin, the Hydra® D-Fender D-Ring for increased reliability, and a B5 systems stock and pistol grip.
Fits 5.56 and 223 Mags and Drums
Photo Shows Examples, Drums sold separately.
