Version 2.1 of the hop-up alignment system, designed for M4 / AR15 AEG replicas with a V2 gearbox.
This kit is designed for the GATE Pulsar D2 Rev. 2 HPA engine, a dual-solenoid evolution intended for high-performance configurations, combined with the PolarStar HopUp chamber. The system keeps the nozzle centered relative to the chamber to ensure more consistent feeding and a more rigid assembly.
This combination helps reduce play between the engine, hop-up chamber, and inner barrel. This improves shot-to-shot consistency and makes it easier to fine-tune an HPA setup based on a V2 gearbox.
Compatibility
| Component | Compatibility |
|---|---|
| HPA engine | GATE Pulsar D2 Rev. 2 |
| Hop-up chamber | PolarStar HopUp |
| Base replica | M4 / AR15 AEG |
| Gearbox | V2 |
| System | HPA |
| Fire selector | Semi-auto and configurable modes via compatible FCU |
This kit is designed for the second revision of the GATE Pulsar D2. Always check that your nozzle, chamber, inner barrel, and bucking are properly adjusted before using the replica.
What's Included
- Alignment base to connect the engine and hop-up assembly.
- Rear clip for mounting via the rear pin or fixed stock.
- Mounting points for optional brass M3 inserts.
- Side clip to guide the HPA tube or line.
- Upper front locking cap for the PolarStar HopUp chamber.
- Rear plate designed for reinforcement with an M5 screw.
Required Components (Not Included)
- 4× M3 × 4.2 mm inserts
- 4× M3 × 8 SHCS screws
- 1× M5 screw with washer for rear reinforcement
- GATE Pulsar D2 Rev. 2 and compatible electronics/FCU
- PolarStar HopUp chamber, bucking, and inner barrel
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