MX LED MOD For Max Hopup Housing [Made to Order]

This a made to order product. We will make the products in batches, if this text is visible the lead time is ~1week. 

Please note, we will capture the payment upfront. If you want to cancel your order, just reply to your order confirmation and we will refund you. No question asked :) 

MX LED MOD — UV power for the MAX hopup

Small, robust LED mod built to drop into the popular MAX hopup housing. Twin 3W-class UV diodes (395–400 nm) on a custom PCB with an adjustable current regulator. Tuned so the LEDs never run at full 3 W — regulator limits usable current from 0.10 A → 0.25 A for safe, reliable field use.

Why you want it

• Real UV illumination so tracer rounds glow properly through the MAX hopup.
• Compact PCB fits beside the upper; wires can be routed beside the gearbox into the stock for easy battery installation
• Top-mounted easy-switch for on/off access without tearing the gun down.
• EN pin: set to VCC to force on, GND to force off — wire it to a trigger switch if you want the LEDs live only while you shoot (DIY)

Power & connectors

• Works from 3.3 V minimum up to 7.4 V
• Compatible with JST 7.4 V or Deans connector (adapter included in batch 1).
• Current regulation settable to 0.10–0.25 A to protect the diodes and your battery.

Version note — Batch 1 (V1.0B1)

• Dimensional issue: early batch measured slightly off — only two mounting screws can be used (either the top pair or the bottom pair). It works fine in the field, but plan your install accordingly.

• First-batch buyers get a wiring harness + JST→Deans adapter free of charge (value ~€7) and a €5 gift card for any STL files we have (Will be provided in a mail)

Fit & behavior tips

• The first BB out of the chamber will appear dark — it sits behind the hop-up and isn’t hit by the UV until it advances. Not a fault, just physics.
• Route wires tight along the gearbox and down into the stock.
• If you want trigger-controlled illumination, use the EN pin and wire to a momentary switch or trigger microswitch (Please note, this is not recommended for batch one, since it will alter the PCB, we had to jumpwire the EN Bridge, so you will have to desolder this wire)

What’s in the box (V1.0B1)

• MX LED MOD PCB with diodes and regulator
• Wiring harness (Presoldered to the PCB) + JST→Deans adapter (first batch only)

*If you order only the board, you will only receive the MX LED MOD. The 5€ copon for stl files is not available in this bundle)