Authentic Korean War era USMC M3 evening vision scope The M3 carbine was an M2 carbine equipped with a mount designed to accept an infrared sight for use at nighttime. It was in the beginning utilised Using the M1 sniperscope, and an active infrared sight, and observed action in 1945 https://baidubookmark.com/story19390671/5-essential-elements-for-classical-ak-47