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PolarStar F1 + MAXX MODEL alignment kit for SR25 DMR

23,00 €
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Version 2.5 of the hop-up alignment system, designed specifically for SR25 DMR HPA (Designated Marksman Rifle) replicas with long V2.5 gearboxes.
This configuration combines the PolarStar F1 engine with the MAXX MODEL hop-up chamber to achieve precise nozzle alignment in long-range, high-precision setups.

Compatible with ICS lowers and V2.5 long gearboxes, making it ideal for DMR builds using M14x1 LH outer barrel threads and 550–700 mm inner barrels.

This kit optimizes the feeding of heavy BBs (0.32g–0.43g) typical of DMR configurations, eliminating inconsistencies caused by misalignment in long gearbox HPA systems.

Compatibility

Component Compatibility
HPA Engine PolarStar F1 SR25 DMR
Hop-up Chamber MAXX MODEL
Base Replica SR25 DMR
Gearbox V2.5 Long / ICS SPLIT

What the kit includes

  • Reinforced rear clip for mounting on long V2.5 gearbox.
  • Extended base with housing for M3 inserts (brass recommended for DMR builds).
  • Side clip for routing the HPA line in long SR25 configurations.
  • Front locking top cap designed specifically for MAXX MODEL chamber geometry.
  • Rear plate with dual mounting points for M5 screws (extra rigidity for DMR setups).

Required components (not included)

  • 6× M3 × 4.2 mm threaded inserts (2 extra for V2.5 length)
  • 6× M3 × 8 SHCS screws
  • 2× M5 × 10 screws (for rear plate)