Sparklabs WOLF + Silent Industries ALPHA 2026 · Alignment Kit V2.1 · M4 AEG HPA

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

• Sparklabs WOLF engine (electromagnetic HPA engine, highly efficient and compatible with standard V2 gearboxes, including ICS platforms and similar M4 builds).
• Silent Industries ALPHA chamber (CNC hop-up chamber for M4 AEG/HPA featuring TRUE-TDC system, lip tensioner, and fine load resistance adjustment).

This kit ensures a solid and precise alignment between the WOLF nozzle and the ALPHA chamber, improving feeding consistency and reducing BB positioning variations. The ALPHA chamber is especially recommended for HPA builds such as Wolverine, PolarStar, Gate Pulsar, and Sparklabs WOLF.

Compatibility

Component	Compatibility
HPA Engine	Sparklabs WOLF
Hop-up Chamber	Silent Industries ALPHA M4/16 AEG/HPA
Base Platform	M4 AEG / AR15 / ICS
Gearbox	V2 / ICS SPLIT

What’s included

• Rear clip for mounting via rear body pin or fixed stock.
• Base with housing for M3 inserts (brass optional).
• Side clip for routing the HPA line.
• Top locking cap specifically designed for the ALPHA chamber.
• Rear plate with mounting point for M5 screw (extra reinforcement).

Installation and setup

1. Printing and preparation

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

2. Assembly in the replica

   • Insert the base into the lower and install the M3 inserts.
   • Position the rear clip aligned with the rear body pin or fixed stock.
   • Install the ALPHA chamber with the inner barrel; the top cap locks the assembly and keeps the barrel centered.
   • Route the HPA line from the WOLF engine through the side clip to avoid sharp bends or friction.

3. Final fixation

   • Secure the rear plate with an M5 screw and washer for maximum rigidity.
   • Check that the Sparklabs WOLF nozzle enters the ALPHA chamber centered, without lateral play.
   • Perform dry feeding tests and adjust the hop-up according to your BB weight.

Required components (not included)

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

Lower recommendations

For maximum rigidity, using a metal ICS lower is recommended.
If you prefer a printed lower, the following Gearbox V2 Universal Lower models are compatible with this kit:

• 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 setup manuals are available in the Manuals section of the website or on the project’s Discord server.