Cyma Metal Complete Hop Up Chamber for M4/M16 AEG

Product Code: M005
High performance direct replacement part
Stock Status: Sold Out
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Durable metal chamber that replaces and M4 / M series AEG with type 2 gearboxes, improves the feeding of BB and the enhanced bucking will improve accuracy compared to a standard one. Includes all the components shown, if you're unfamilair on how to build a hop up unit for an M4 airsoft gun there are there are videos available on YouTube.


  • Direct replacement for standard AEG hop up unit
  • Sturdy metal body is less susceptible to recoil & vibration
  • Enhanced rubber hop-up bucking
  • Fits tightly to barrel base to reduce lost compression


  • Brand: CYMA


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