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Desert Tech USED MDRx Compliant Conversion Kit 5.56 NATO/.223 Rem 16" 10rd FE MDR-CK-B1610-FE - Open Box, No Magazine UA4589

SKU UA4589

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The Desert Tech MDRx 16" 5.56 NATO/.223 Rem Forward Ejection Conversion Kit utilizes the newly designed gas block for enhanced reliability and the new Ratchet compensator. The conversion kit includes the bolt, barrel assembly (including barrel extension), forward chute panel, and magazine insert (if applicable). Desert Tech MDRx Forward Ejection (FE) Conversion Kits are only compatible with MDRx FE rifles and chassis.


  • Item ConditionUsed
  • Caliber or Gauge:.223 Wylde
  • Barrel Length:16"
  • Rifle Barrel Twist:1:8"
  • Barrel Thread Pitch1/2x28
  • HandednessAmbidextrous
  • MPNUA4589

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