Version v2.1 of the hop-up alignment system, designed for AEG V2.1 replicas equipped with the Redline Milsim N7 Gen2 HPA engine and the Silent Industries Alpha 2026 hop-up chamber.
This kit ensures precise alignment between the N7 Gen2 nozzle and the Alpha 2026 hop-up chamber, improving feeding consistency, air seal, and overall assembly stability in demanding HPA configurations.
Compatibility
| Component | Compatibility |
|---|---|
| HPA Engine | Redline Milsim N7 Gen2 |
| Hop-Up Chamber | Silent Industries Alpha 2026 |
| Base Platform | AEG V2.1 / M4 / AR-15 |
| Gearbox | Version 2 |
| ICS Metal Lower Receiver | Compatible |
| Universal Lower Receiver | Compatible with the "universal" configuration |
What's Included
- Rear retaining clip for installation using the rear body pin or a fixed stock.
- Main base with mounting points for M3 threaded inserts.
- Side clip for routing the HPA airline.
- Front locking top cap.
- Rear mounting plate with an M5 screw attachment point.
Installation and Setup
- Print all parts using the recommended settings.
- Lightly sand the contact surfaces for an optimal fit.
- Install the main base into the lower receiver.
- Install the M3 threaded inserts.
- Fit the rear retaining clip and secure the alignment.
- Install the Silent Industries Alpha 2026 hop-up chamber together with the inner barrel.
- Route the HPA airline through the side clip.
- Secure the rear plate using an M5 screw and washer.
- Adjust the engine pressure and verify proper feeding operation.
Required Components
- 4× M3 threaded inserts (4.2 mm).
- 4× M3 × 8 mm SHCS screws.
Lower Receiver Recommendation
For maximum rigidity and durability, the ICS metal lower receiver is recommended.
If you prefer a 3D-printed solution, a universal lower receiver compatible with the AEG V2.1 configuration can also be used.
3D Printing Settings
- Layer height: 0.10 mm or 0.15 mm.
- Recommended infill: 55% to 90%.
- Recommended material: PLA+.
- Estimated print time depends on printer configuration and infill percentage.
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