wolverine reaper 2 inferno 2 silent industries alpha

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

• Wolverine Reaper 2 / Inferno 2 engines (compact HPA engines with high pneumatic efficiency and plug & play configuration).
• Silent Industries ALPHA M4/16 AEG/HPA chamber (CNC chamber with TRUE-TDC system, tension ring, and full bucking lip support optimized for HPA).

This kit provides precise alignment between the Reaper 2 / Inferno 2 nozzle and the ALPHA chamber, controlling bucking pressure and preventing typical HPA issues such as double feeding or BB loading inconsistencies.

Compatibility

Component	Compatibility
HPA Engine	Wolverine Reaper 2 / Inferno 2
Hop-up Chamber	Silent Industries ALPHA M4/16 AEG/HPA
Base Replica	M4 AEG
Gearbox	V2 / ICS SPLIT

What the kit includes

• Rear clip for mounting via rear pin or fixed stock.
• Base with housing for M3 inserts (optional brass).
• Side clip for guiding the Wolverine HPA tube/line.
• Front locking top cap specifically designed for the ALPHA 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 the internal areas and contact surfaces for a clean fit.
   • Apply dry lubricant or wax on sliding areas if you want to facilitate maintenance.

2. Installation in the replica

   • Insert the base into the lower and install the M3 inserts.
   • Place the rear clip aligned with the rear pin or the stock anchor point.
   • Install the ALPHA chamber with the inner barrel; the top cap locks the assembly.
   • Route the Reaper 2 / Inferno 2 HPA line through the side clip.

3. Final fixation

   • Secure the rear plate using an M5 screw and washer for maximum rigidity.
   • Verify that the Wolverine nozzle enters centered into the ALPHA chamber.
   • Set the Reaper 2 / Inferno 2 pressure (recommended 80–120 psi) and perform feeding tests.

Required components (not included)

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

Lower receiver recommendations

It is recommended to use the ICS metal lower receiver for maximum rigidity.
If you prefer to print the lower part, the following Gearbox V2 Lower “Universal Lower Part” models are compatible:

• Version 3
• Version 4.2
• Version 4.3 MTW

You can find them HERE.

3D printing parameters

• Approximate 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.