Simply stated, the Desert Tech MDRX is the most reliable, most accurate and most versatile semi-auto bullpup rifle on the market. Desert Tech is known for their hyper innovative and extremely accurate, caliber convertible bullpups. Desert Tech’s MDRX keeps that spirit moving forward in a semi-automatic platform. Start with a MDRX in any of the 4 available calibers then add the conversion kit of your choice for when you need something different. Caliber conversions are easy and can be completed in under 5 minutes with a single tool.  Available in 5.56, .300 AAC BLK, .308 Win and 6.5 Creedmoor the MDRX is well suited to many shooter demands. Equally at home in the hands of an operator or a sportsman the MDRX is a perfect choice for those looking for a rifle that can do it all. Built to withstand the harshest conditions the MDRX is incredibly compact, perfectly balanced and ergonomically superior to any other bullpup on the market. As with all Desert Tech rifles, the MDRX is backed by a limited lifetime warranty.