M1 M2 M3 Carbine M2 Infrared Sniper Scope Korean War Night Vision.
It fits on the M3 mounting bar and lines up with windage adjustment nuts at rear of mounting bar (See Photos). M1 m2 m3 carbine m2 infrared sniper scope korean war night vision i have no idea if it works. The M2 Scope which came out before the M3 scope is much rarer.