MG Industries, manufacturer of the modular MARCK-15 AR “Hydra” platform, are pleased to announce the availability of the Hydra Modular weapon system in the hard-hitting .50 Beowulf caliber. This configuration of MGI’s modular, multi-caliber weapon system, also known as the Hydra, is fully interchangeable with the rest of MGI’s Modular Weapons Systems.

It includes MGI’s Modular Lower Receiver with an AR Style magazine-well, the Quick Change Barrel (QCB-D) Upper Receiver and a 16-inch stainless steel, bull-nosed barrel with a low profile gas block and MGI’s modified bolt carrier.

With this weapon, you can purchase and utilize the rest of the ever-growing system, including our conversion kits. To convert this system, the most you will need to change is three components: the barrel, bolt and magazine well – all done without tools. For some calibers, simply change the bolt and barrel on this weapon and the shooter will be able to fire multiple calibers, including .223/5.56, 6.5 Grendel, 6.8 SPC, .450 Thumper and the .458 SOCOM. There is no more versatile weapon on the planet, and it is now available, in stock and ready to ship.

Like most configurations of the Hydra, this weapon ships to you in a standard, hard-sided, lockable pistol case.

The .50 Beowulf MARCK-15 rifle has a suggested retail price of $1499.00

For more information, visit or your local retailer. Retailers, contact MGI at to find out more about carrying the most modular rifle system in the world.

MGI Hydra.50 Beowulf Rifle Specifications:

Caliber:.50 Beowulf
Overall Length:36 inches
Overall Height:7 inches
Overall Width:2.5 inches
Barrel Length:16 inches
Weight:7.5 lbs.
Magazine Type/Cap:AR style magazines


Image courtesy MG Industries

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