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PolarStar MRS On-Tank Regulator Regulator Only

MRSREG , 10000104



PolarStar MRS On-Tank Regulator Regulator Only

PolarStar has created this newly-designed and widely-requested HPA regulator, which stands just 3 inches tall and threads directly onto an HPA tank. In using such a design, it eliminates the need for a separate UFA and keeps your air rig profile to a minimum. The regulator has two options for output pressure: the standard configuration allows the user to go between 40-145PSI; while the optional High-Pressure Spring allows the user to boost their maximum pressure to 200PSI. What also sets this regulator apart from competing models is it’s integral on/off valve. This enables you to depressurize the system prior to unscrewing it from the tank to elevate wear and possible damage on the tank threads and o-ring. An integrated tournament lock is also included with the MRS.


  • Low-profile design that threads directly onto an HPA tank.
  • Adjustable output pressure from 40psi to 145psi (standard configuration) with high-pressure configurations available (high-pressure kit sold separately).
  • Oversized 4mm piston bore for extremely high flow and refresh rate even at only 40psi.
  • Integral tournament lock can be secured with a standard zip-tie. Compatible with standard HPA as well as SLP tanks.


Min Output Pressure: 40 PSI
Max Output Pressure: 145 PSI
Max Input Pressure: 900 PSI
Outputs: 4x 1/8 NPT
Warranty Information: 1 Year Limited Warranty

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