Maple Leaf - Hi-Capa 5.1 hop up chamber and inner barrel set (113mm)

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Product Information

This is a drop-in kit that is pre-assembled, so it is super easy to fit. Literally, all you need to do is place it inside your WE/TM/KJ branded Hi-Capa to instantly improve your pistol's consistency and range.

The barrel has a tight bore inner diameter of 6.01mm, which will improve consistency and longer range when coupled with a high-quality BB.


  • Made to work perfectly together
  • 60° Autobot bucking
  • 6.01mm inner barrel
  • Pre-assembled drop-in kit
  • Easy way to upgrade
  • May increase output power
  • Much more reliable than OEM part
  • For WE / Tokyo Marui & KJ Works

Package Includes:

  • Hop-Up & Inner Barrel Set for Hi-Capa

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