Umarex Beretta APX Airgun Pistol .177 BlackUmarex Beretta APX Airgun Pistol . 177 Black APX semi automatic blowback BB pistol is yet another ultra realistic replica from Umarex USA; designed as a replacement for the Beretta M9, U. S. Armed Forces standard issue, but deemed too expensive for the DOD, Beretta withdrew the APX and opted to modify the M9; civilian world benefited by being able to purchase a mil spec pistol that was "too mil spec" for the military; built with a polymer frame and