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MARCK-15 Hydra® 5.56mm and .300 Blackout


The MGI® 2-Caliber Package offers a 5.56 x 45 with a .300 Blackout Barrel Assembly installed in a 36" Lockable Tactical Case!  With the MGI® Quick Change Barrel Upper Receiver (QCB-D) on the HYDRA Weapon System, you can easily change your 5.56 over to a .300 Blackout.  All this can be done in a matter of seconds and without the need for any tools!  Simply release the locking arms, pull out the 5.56 barrel, insert the .300 Blackout barrel and lock it into place!  It's really that simple!!!

All Rifles are test fired prior to packaging.

FFL is necessary to make purchase. All Federal and State Rules apply.

California, Massachusetts and New Jersey Residents are REQUIRED to select State Compliant Options.

State Compliant Options is required.

Out of Stock. Please call us at 207-817-3280 for more information.

Shipping Information:

We ship UPS Ground. All Shipping & Handling
charges are applied at checkout and will vary
based on weight and shipping destination.