SIG Sauer ProForce P226 Mk25 Gas Blowback Airsoft PistolOnce reserved only for an elite few, the MK25 delivers the advanced features that made the P226 the official sidearm of the U. S. Navy SEALs. The SIG SAUER P226 is the pistol that sets the standard by which all other combat handguns are measured. The exceptional ergonomics and balance make this full size pistol easy to handle. Its longer barrel yields better ballistic performance and accuracy. The P226 MK25 is identical to the pistol carried by the U.