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rail system

  1. Question?? P99 VS PPQ

    Are these guns in the .40 cal the same barrel and slide size? I found this Airgun Accessories by Walther for CO2 Airgun Pistols and Air Rifles - UmarexUSA.com rail system which is full metal for a airsoft gun. If they are the same barrel and slide size I was going to just blow the $30ish bucks...