Desert Tech MDRx Rifles are the new generation Bullpup Rifles that are available in 4 caliber options: DT MDRX 6.5 Creedmoor, DT MDRX 308 win, DT MDRX 300 Blackout, and DT MDRX 5.56. These all new 2020 rifle systems are the enhanced versions of the original MDR rifle systems. The best part of the latest version of Desert Tech MDRx Rifles is that they can be quickly changed from a close-quarter 16-inch bullpup rifle to a 20-inch sniper platform. The manufacturer has incorporated a new Desert Tech Ratchet compensator, a new enhanced bolt carrier, improved gas block, an enhanced trigger, and a higher grade of polymer. Desert Tech has incorporated all these upgrades by reducing the overall-cost of the weapon to the consumer. These rifles come with superior ergonomics, unmatched precision, reliability, and the capability of quickly changing rifle lengths/calibers (to adapt to different missions). Have a closer look at the Desert Tech MDRx Rifles and Chassis Upgrade Kits on sale at Scopelist.