MGI’s MARCK-15 .50 Beowulf Rifle Now Available

The MGI Hydra Modular Rifle allows firing of multiple calibers on one platform.

MGI Hydra Modular Rifle in .50 Beowulf
MGI Hydra Modular Rifle in .50 Beowulf
MG Industries
MG Industries

Old Town, Maine ( 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 [email protected] 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


About MGI:

As a Maine based company, MGI is committed to providing the United States military and the American law enforcement community a weapons platform of endurance and reliability to face the mission and tactical challenges of a post 9/11 World. MGI products are MADE IN THE U.S.A. and available through Camfour (413-564-2300), Acusport (937-593-7010), Big Rock (800-334-2661) and Bill Hicks & Co., Ltd. (800-223-0702) or visit Contact MG Industries at 207-817-3280 or [email protected] for more information.