PolarStar MRS Regulator First Look
OptimusPrime
24 Aug 2017
Airsoft GI got their hands on the new PolarStar Airsoft MRS Regulator for HPA powered airsoft guns... "Your first look at the new MRS Regulators from Polar Star! Utilizing a larger bore piston, this regulator cuts down dramatically on the 'shoot down' effect sometimes experienced with extreme HPA setups. Neat!"