with 4 times magnification PU, Soviet 3.5×21 telescopic sight M81, M82 and M84, American sights used on Garand (M1D, M1C) and 1903A4 References General references Pegler, Martin. Out of Nowhere: A History of the Military Sniper (Osprey 2004) p. 188-189 The ZF41 Sharp Shooter A brief history & collectors guide – part 1 The ZF41 Sharp Shooter A brief history & collectors guide – part 2 Firearm sights Research and development in Nazi Germany