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Blackdraft Phoenix + BEGADI Neptune PRO alignment kit for ICS MPX (v2.1)

23,00 €
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Version 2.1 of the hop-up alignment system, designed specifically for ICS MPX/CXP HPA replicas using:

  • Blackdraft Phoenix engine (compact and efficient HPA engine, ideal for subcompact SMG configurations).
  • BEGADI Neptune PRO chamber (CNC hop-up chamber with precise adjustment system and excellent bucking support for HPA).

This kit ensures solid alignment between the Phoenix nozzle and the Neptune PRO chamber, optimized for the compact ICS MPX/CXP platform. It is fully compatible with the original ICS lower receiver and other universal lowers from the project.

This template was created for Phoenix Beta, which was released before 2026, so if you need the 2026 version, just let me know and I'll put it together for you.

Compatibility

Component Compatibility
HPA Engine Blackdraft Phoenix (beta)
Hop-up Chamber BEGADI Neptune PRO
Base Replica ICS MPX / CXP
Gearbox ICS split / compatible V2

What the kit includes

  • Rear clip adapted for the compact MPX/CXP format.
  • Base with housing for M3 threaded inserts (optional brass).
  • Side clip for routing the HPA tube/line in subcompact configurations.
  • Front locking top cap specifically designed for the Neptune PRO chamber.
  • Rear plate with mounting point for an M5 screw (additional reinforcement).

Installation and adjustment

1. Printing and preparation

  • Print the parts with 65–80% infill.
  • Lightly sand internal areas to ensure a perfect fit within the compact receiver.
  • Apply dry lubricant on contact surfaces if necessary.

2. Installation in the replica

  • Insert the base into the original ICS lower receiver (or compatible universal lower).
  • Mount the rear clip aligned with the MPX/CXP rear body pin.
  • Install the Neptune PRO chamber with the inner barrel; the top cap locks the assembly and keeps everything centered.
  • Route the Phoenix HPA line through the side clip adapted for the compact MPX/CXP layout.

3. Final fixation

  • Secure the rear plate using an M5 screw with washer for maximum stability.
  • Verify that the Phoenix nozzle enters the Neptune PRO chamber cleanly without lateral play.
  • Perform feeding tests considering the compact internal space of the MPX/CXP platform.

Required components (not included)

  • 4× M3 × 4.2 mm threaded inserts
  • 4× M3 × 8 SHCS screws

Lower receiver recommendations

Compatible with the original ICS MPX/CXP lower receiver.

Also works perfectly with these Gearbox V2 Lower “Universal Lower Part” models:

  • Version 3
  • Version 4.2
  • Version 4.3 MTW

Available here:
https://lab.sychev.xyz/categoria/hpa-lower

3D printing parameters

  • Approximate print time: ~1 h 15 min (compact format)
  • Recommended material: PLA+
  • Layer height: 0.10 mm – 0.15 mm

Manuals

Installation and adjustment manuals are available in the Manuals section of the website or on the project’s Discord server.

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Frequently asked questions

What material and dimensions apply to Blackdraft Phoenix + BEGADI Neptune PRO alignment kit for ICS MPX (v2.1)?

The public product data does not declare a material or finished dimensions for this design. Check the images, downloadable files, and the exact manufacturing or printing setup before producing it.

What is Blackdraft Phoenix + BEGADI Neptune PRO alignment kit for ICS MPX (v2.1) compatible with?

The published tags and categories identify this design with ics mpx, icx cxp, blackdraft phoenix, begadi neptune pro, hpa, airsoft. Confirm the exact platform, revision, and mounting points before ordering.

How do I install or prepare Blackdraft Phoenix + BEGADI Neptune PRO alignment kit for ICS MPX (v2.1)?

Read the installation notes in the product description, inspect the supplied files and images, and test alignment before final fastening. The required tools, fasteners, printing parameters, or post-processing depend on the specific build.

What are the real-world uses for Blackdraft Phoenix + BEGADI Neptune PRO alignment kit for ICS MPX (v2.1)?

This design is intended for projects related to ics mpx, icx cxp, blackdraft phoenix, begadi neptune pro, hpa, airsoft. It is useful for a compatible repair, conversion, prototype, replacement, or custom build when the published fitment and project requirements match.