PolarStar JACK HPA Conversion Kit – M249
£335.50
Polarstar JACK HPA conversion kit for the M249 — Polarstar’s compact FCU-based HPA engine in the SAW format. Consistent, programmable, and a step-change upgrade for the M249 support weapon role.
PolarStar JACK HPA Conversion Kit — M249
The Polarstar JACK for M249 is a platform-specific HPA conversion that transforms the SAW into one of the most consistent support weapons on the field. The JACK’s FCU-based electronic control and solenoid-driven air delivery give the M249 Polarstar’s benchmark FPS consistency — critical for a high-ROF support weapon where reliable feeding and consistent energy output matter on every shot.
JACK for M249 — Why It’s a Standout Upgrade
The M249 fires at sustained high rates of fire — conditions that expose inconsistency in any standard AEG system. The Polarstar JACK eliminates that variable: the solenoid-driven air delivery is mechanically consistent regardless of ROF, giving you the same FPS on the 500th shot as the first.
Key Features
- M249-specific conversion — engineered for the SAW platform’s geometry and feeding requirements
- Integrated FCU — semi, full auto, and burst programmable
- Polarstar consistency — tight shot-to-shot FPS window at any ROF
- No battery required — HPA throughout
- Compatible with JACK ecosystem — accessories and tuning from the JACK range apply
External HPA rig required. M249 platform specific. Professional installation recommended. 18+.
Related products
