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Polarstar F2 MAXX Model Alignment kit SR25 DMR

24,00 €
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Version 2.5 of the hop-up alignment system, designed specifically for SR25 DMR HPA replicas (long V2.5 gearbox) using:

  • PolarStar F2 engine (dual-solenoid HPA engine optimized for DMR configurations with precise control of pressure and air volume).
  • MAXX MODEL chamber (high-precision hop-up chamber with fine adjustment, widely used in DMR builds for consistent performance with medium–heavy BB weights).

This kit ensures perfect centering between the F2 nozzle and the MAXX MODEL chamber in long V2.5 gearboxes, eliminating lateral variations and maximizing stability in long-range semi-automatic shots. Fully compatible with ICS lowers and split gearbox systems.

Compatibility

Component Compatibility
HPA Engine PolarStar F2 SR25
Hop-up Chamber MAXX MODEL
Base Replica SR25 DMR
Gearbox Long V2.5 / ICS SPLIT

What the kit includes

  • Reinforced rear clip for mounting using the rear body pin or fixed stock (adapted for long gearboxes).
  • Extended base with housing for M3 threaded inserts (brass recommended for DMR builds).
  • Side clip for routing the HPA line in SR25 configurations.
  • Front locking top cap specific for the MAXX MODEL chamber in V2.5 geometry.
  • Rear plate with mounting point for an M5 screw (additional structural reinforcement).

Required components (not included)

  • 4× M3 × 4.2 mm threaded inserts (brass recommended).
  • 4× M3 × 8 SHCS screws.
  • 1× M5 × 12 mm screw + washer (for the rear plate).