sparklabs wolf silent industries alpha alignment kit

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

• SparkLabs WOLF engine (compact high-performance HPA engine designed for M4 V2 builds).
• Silent Industries ALPHA M4/16 AEG/HPA chamber (CNC chamber with TRUE-TDC system and lip tension ring optimized for HPA).

This kit ensures precise alignment between the WOLF nozzle and the ALPHA chamber, eliminating feeding variations and maximizing shot-to-shot consistency. It is especially compatible with ICS split designs.

Compatibility

Component	Compatibility
HPA Engine	SparkLabs WOLF
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 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 in the correct position.
   • Route the SparkLabs WOLF HPA line through the side clip to avoid bends.

3. Final fixation

   • Secure the rear plate using an M5 screw and washer for maximum rigidity.
   • Verify that the WOLF nozzle enters centered into the ALPHA chamber without lateral play.

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.