My brother got an Elcan SpecterDR 1-4x for his MK18. I think he’s finally done playing musical chairs with the optics on his MK18. He also snagged a Surefire M620V. I switched out the huge stock M93 mount for a much smaller Gear Sector M Series Mod 3 mount.
After putting the Elcan through some drills, i can totally agree with people who say the Elcan has super clear glass. The weight isn’t as bad as i thought it’d be, similar to the Trijicon TR24 1-4x he had on it.