Desert Tech MRDX SE 5.56 NATO / .223 Rem 16.12″ Barrel 30-Rounds


The Desert Tech MRDX SE is a versatile and reliable rifle with an ergonomic and compact design. It comes chambered in 5.56 NATO with a 16.12 inch barrel. Features include a fixed bullpup stock, a two-stage trigger, an optics ready flat-top, and a 30 round magazine. Get one today at the best price online from us

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desert tech

Desert Tech (Micro Dynamic Rifle Xtreme Side Ejection) is designed for maximum concealment and ambidexterity, allowing operators to return fire at any angle without exposing unnecessary parts of their body to threats. It features upgraded polymer resin to better withstand high impact falls, and improved gas block drainage to ensure maximum reliable performance in water and mud submersion testing. The trigger pull and creep have been reduced to allow for more accurate shooting capability. The side ejection can be converted from left to right hand ejection by removing the Allen screw and flipping the bolt head 180 degrees in the bolt carrier. The MDRX-SE can be converted to a forward ejection rifle by purchasing an MDRX conversion kit and forward ejection kit. (not included)

MRDX SE Specifications

  • Caliber: 5.56x45mm NATO
  • Model: MDRX
  • Series: SE
  • Stock Finish: Black
  • Action: Semi-Auto
  • Barrel Length Range: 16″ to 16.99″
  • Sights: None, Optic Ready
  • Capacity: 30+1
  • Muzzle: Threaded
  • Grips: Black Polymer
  • Hand: Ambidextrous
  • OAL: 26.20″
  • Receiver Finish: Black
  • Receiver Material: Steel
  • Stock Description: Fixed Bullpup
  • Stock Finish Group: Black
  • Stock Material: Synthetic
  • Thread Pattern: 1 / 2″-28 tpi
  • Trigger: Two-Stage
  • Twist: 1:8″
  • Barrel Description: 4140 Steel
  • Barrel Finish: Black
  • Barrel Length: 16.12″

    The Desert Tech MDR Micro Dynamic Rifle is designed for the Defense needs of the future. The compact dimensions and superior ergonomics allow maximum portability without sacrificing precision, power or speed. The Desert Tech MDR allows mission specific adaptability by changing length, sound signature and caliber. It allows seamless shoulder transitions thanks to a fully-ambidextrous design.

    The Desert Tech MDR offers a unique portability because it is lightweight, compact, ergonomic and due to the bullpup design well balanced with an overall length of only 26.2” / 66.55cm and a weight of only 7.1 lb / 3.22 kg
    The Desert Tech MDR is adaptable in both size and caliber. It can quickly convert between multiple calibers, and its gas-block incorporated picatinny rail and the Desert Tech barrel retention system allows for consistent return-to-zero between conversions. The barrel is also truly free floated by design so barrel whip does not affect accuracy.
    The Desert Tech MDR is fully ambidextrous with no modification necessary. The patented forward ejection mechanism and intuitive controls set a new bullpup standard for speed and precision.


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