The Maple Leaf I Key is a simple but effective upgrade for Marui/WE 17/18/19 series GBB pistols. It is a small, metal lever that sits between the hop-up rubber and the original support arm. The I Key provides additional support for the rubber, allowing it to lift heavier BBs and provide more consistent hop-up. This is especially beneficial for players who are using heavier BBs for longer range engagements.
The Maple Leaf I Key is very easy to install and requires no modification to the pistol. It is also compatible with most hop-up rubbers and hop-up chambers.
Improves hop-up consistency and accuracy
Allows the use of heavier BBs
Easy to install
Compatible with most hop-up rubbers and hop-up chambers
Longer range and more accurate shots
Reduced drop-off at distance
More consistent grouping
Marui/WE 17/18/19 series GBB pistols
Disassemble the pistol and remove the hop-up unit.
Remove the original hop-up rubber and support arm.
Place the Maple Leaf I Key between the hop-up rubber and the support arm.
Reassemble the hop-up unit and reinstall it in the pistol.
For best results, use the Maple Leaf I Key with a high-quality hop-up rubber, such as the Maple Leaf Macaron or Mr. Hop.
If you are using heavier BBs, you may need to adjust the hop-up setting to achieve the desired accuracy.
Overall, the Maple Leaf I Key is a great upgrade for any Marui/WE 17/18/19 series GBB pistol. It is easy to install, inexpensive, and provides significant improvements to hop-up consistency and accuracy.