Polarstar F2 - HPA Conversion Kit sniper hpahpa sniper are incredibly durable

are incredibly durable

This sight is ready to mount on your MSR platform with the included co-witness riser base

but also comes with a custom TDC nub and trolley to offer the best possible control over your hopup

and mountain environments

anti-fog thermal lenses

Polarstar F2 - HPA Conversion Kit sniper hpahpa sniper are incredibly durablePolarstar F2 HPA Conversion Kit The F2 incorporates a new one piece, lightweight poppet valve design yet still operates on the same principle as the Fusion Engine poppet. This valve is able to operate at lower pressures and uses less air volume to function which optimizes air efficiency. A robust design allows for an operating pressure range of 45psi to 145psi which enables the F2 to achieve velocities from CQB to DMR while employing only one nozzle