Desert Tech MDRx 308 Win 20", Forward Eject, Flat Dark Earth, Semi-Auto, CA-Legal

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$37.19 (Fixed Shipping Cost)

In 2018 a military version of the Desert Tech MDR, the NGSAR, was submitted, United States Army Next Generation Squad Weapons Program to replace standard issue US army Infantry Weapons. The NGSAR was not selected, but new for 2020 Desert Tech released the MDRx.

The Desert Tech MDRx is a gas operated, conventional rotary bolt bullpup rifle. The gas system features a gas piston located above the barrel and a 6 position manual gas regulator.[6]

The MDRx rifle is designed to be ambidextrous. The MDRx contains an ambidextrous forward and side eject port and viewing window that allows for tool free forward ejector side change. A non-reciprocating ambidextrous charging handle is installed on both sides of the gun, and two or three-position safety / selector levers and magazine release are provided on both sides of the pistol grip. The rifle is compatible with Desert Tech caliber conversion kits that allow the rifle to change caliber. This provides a unique feature in which the rifle chassis can accept both intermediate cartridges and full-powered rifle cartridges on the same serial number platform (such as 5.56×45mm NATO and 7.62×51mm NATO magazines).

MDRX rifles now feature an upgraded polymer resin formula for enhanced durability against high impact falls. Additionally, gas block drainage on the MDRX has been improved to dramatically increase reliability after submersion in mud and water. The trigger of the MDRX has been improved, providing a lighter pull with less creep. All MDRX rifles now feature the new Ratchet Compensator, which provides excellent control and recoil reduction without subjecting the shooter to gas blowback.

Built on a gas piston system and featuring a compact bullpup design, the MDRX flawlessly combines functionality, modularity, and ergonomics. The MDRX continues to utilize the MDR’s patented forward ejection system that makes the rifle ambidextrous without reconfiguration, as well as sending spent brass toward the target and not the guy next to you. The rifle features a full length Picatinny rail that extends to the end of the handguard as well as industry standard M-Lok attachment points. The MDRX, is available in four chamberings: .223 Wylde, .300 BLACKOUT, .308 Winchester and 6.5 Creedmoor.



  • Caliber: 308 Winchester or 7.62mm NATO
  • Rifle Overall Length:30"
  • Action: Gas-Piston Semi-Automatic
  • Rifle Barrel Length: 20"
  • Barrel Thread Pitch: 5/8x24mm
  • Rifle Stock: Improved Polymer Bullpup
  • Scope Mount: Full Length Picatinny Rail
  • Iron Sights: No
  • Ejection: Right side, Forward Eject
  • Item Condition: New
  • Product Type: Semi-Auto Rifles


Shipping is a fixed $37.19 to cover the California DROS fee, or we can ship the firearm to your local FFL dealer. Cancellations will incur a 10% restocking fee.