Wolverine Inferno 2 / Reaper 2 + GATE EON alignment kit for M4 AEG (v2.1)

Version 2.1 of the hop-up alignment system, designed for M4 AR15 AEG HPA or ICS replicas using:

• Wolverine Inferno 2 / Reaper 2 engine (high-performance HPA engines with advanced control systems and excellent trigger response).
• GATE EON chamber (compact hop-up unit optimized for HPA and electronic systems).

This kit ensures a solid and precise alignment between the Wolverine nozzle and the GATE EON chamber, maximizing feeding consistency and taking full advantage of pneumatic pressure for optimal performance. Compatible with ICS lower receivers and V2 split gearboxes.

Compatibility

Component	Compatibility
HPA Engine	Wolverine Inferno 2 / Reaper 2
Hop-up Chamber	GATE EON
Base Replica	M4 AR15 AEG / ICS
Gearbox	V2 / ICS SPLIT

What’s included in the kit

• Rear clip for mounting via rear pin or fixed stock.
• Base with housing for M3 inserts (optional brass).
• Side clip for routing the HPA line/tube.
• Front locking top cap specific for GATE EON chamber.
• Rear plate with mounting point for M5 screw (additional reinforcement).

Installation and adjustment

1. Printing and preparation

   • Print parts with 65–80% infill.
   • Lightly sand internal areas and contact surfaces for a clean fit.
   • Apply dry lubricant or wax on sliding surfaces to ease maintenance.

2. Assembly on the replica

   • Insert the base into the ICS lower (or compatible printable version) and install the M3 inserts.
   • Place the rear clip aligned with the rear pin of the ICS split system.
   • Install the GATE EON chamber with the inner barrel; the top cap locks the assembly and keeps everything centered.
   • Route the HPA line from the Wolverine Inferno 2 / Reaper 2 through the side clip.

3. Final fixation

   • Secure the rear plate using an M5 screw and washer for maximum rigidity in the V2 split gearbox.
   • Check that the Wolverine nozzle enters the EON chamber centered with no lateral play.
   • Perform dry feeding tests and adjust the Wolverine settings according to your BBs.

Required components (not included)

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

Lower receiver recommendations

Compatible with original ICS lower (metal recommended).
If you prefer to print your lower, these Gearbox v2 Lower "Universal lower part" models are fully compatible:

• Version 3
• Version 4.2
• Version 4.3 MTW

You can find them HERE.

3D printing parameters

• Estimated print time: ~1 h 30 min
• 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.

Related products and articles

Similar product designs:

• v2.1 kit for M4 HPA with Wolverine and GATE EON
• Alignment kit v2.1 for M4 / AR15 AEG HPA GATE PULSAR D1 + GATE EON
• Hop-Up Alignment Kit v2.1 for AR15 / M4 AEG HPA Redline N7 Gen2 and GATE EON

Technical articles for this topic:

• Difference between kit versions
• MAXX Model Hop-Up: Differences Between Models, Versions, and Compatibility with HPA Kits