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The MDR is a select-fire rifle developed by Desert Tech LLC(formerly Desert Tactical Arms). It was first debuted at Shot Show 2014 and is set to enter full production in 2015.

Design Details
Desert Tech's MDR features a gas operated rotating bolt and has a bullpup configuration meaning the magazine and firing mechanism is positioned behind the trigger allowing for a shorter overall weapon length. The rifle comes in a semi-automatic variant for civilians and a select-fire military variant with full-auto capability.

Designed to be fully ambidextrous, the MDR's three position safety/select fire lever is accessible from both sides of the gun and the charging handle can be installed on either side of the receiver to suit the user's preference. The ejector is even designed with left-handed shooters in mind, ejecting spent shells forward and away from their face.

The rifle will first be manufactured in .308 Winchester and 5.56x45mm and will later be available in .300 Blackout, 6.8 SPC and 7.62x39mm NATO. The rifle also features a quick change barrel so converting from one caliber to another is fast and doesn't require any additional tools.