Maple Leaf Marui/WE/KJ Hi-Capa Hop-Up Chamber
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Expected delivery: 1–3 working days
See it in our shop in Aulum, Denmark – directions and opening hours- 14-day right of withdrawal and 365-day returns
- Shop and workshop in Aulum, Denmark
About Maple Leaf Marui/WE/KJ Hi-Capa Hop-Up Chamber
The Maple Leaf hop-up chamber for Hi-Capa is a complete hop-up set in CNC-machined aluminium for gas Hi-Capa pistols from Tokyo Marui, WE and KJ Works in sizes 3.8, 4.3 and 5.1. The set includes the chamber, a steel support arm, an adjustment wheel and an aluminium I-Key, so you have all the parts to rebuild the hop-up in one go.
The hop-up is the upgrade that gives the most accuracy for the money on a Hi-Capa. The plastic factory chamber can flex, and then the trajectory changes from shot to shot. A stiff aluminium chamber with an I-Key gives a longer, more even contact patch between bucking and BB, resulting in a flatter, more stable trajectory.
CNC aluminium, I-Key and complete set
Five reasons to choose the Maple Leaf chamber:
- CNC-machined aluminium: Stiffer and tighter than the plastic chamber, so hop-up pressure and air seal stay consistent.
- Steel support arm and I-Key: The support arm keeps the pressure stable, and the I-Key spreads it over a longer area of the bucking than the standard nub.
- Complete set: Chamber, support arm, adjustment wheel and I-Key included.
- For Hi-Capa 3.8, 4.3 and 5.1: Fits Tokyo Marui, WE and KJ Works Hi-Capa pistols.
- Built for upgrade barrels: Fits GBB/VSR hop-up buckings and inner barrels – Maple Leaf recommends their Crazy Jet barrels.
Maintenance and safety
- Fitting requires stripping the slide. Our workshop in Aulum, Denmark can fit it for you.
- Remove the magazine and check that the pistol is empty before stripping it.
- Clean the inner barrel when fitting, and set the hop-up again with the BBs you use.
Delivery and returns
Shipping options and prices for your country are shown at checkout.
Full 14-day right of return with a money-back guarantee. Unused items in unopened packaging can be returned for up to 365 days in exchange for a gift card. Easy returns via our returns portal. Read more in our terms and conditions.
