Polymer Hop-Up Chamber for AR-15/M16/M4 AEG with ASCU2 (Gen.2 and Gen. 3+)

   A fine Hop Up Chamber with Empty Magazine Detection designed specifically for all AR15/M16/M4 AEG series with
  ASCU. The ASHU features a sturdy and simple design, with precise and steady adjustment.
   It's made of Shock Resistant Reinforced Technopolymer, it's a tough material that does not bend or crack under
  pressure. It's optimized for high performance hop up rubbers with precise clicking adjustments.

   Polymer Hop-Up Chamber for AR-15/M16/M4 AEG.

   A fine Hop Up Chamber designed specifically for all AR15/M16/M4 AEG series. This Hop-Up chamber doesn't have
  the empty magazine detection circuitry but is for people who are looking for the best. The ASHU features a sturdy and
  simple design, with precise and steady adjustment.
   It's made of Shock Resistant Reinforced Technopolymer, it's a tough material that does not bend or crack under
  pressure. It's optimized for high performance hop up rubbers with precise clicking adjustments.