Rifle Scopes Price check please- Leupold Mark 4 MR/T 1.5-5 cmr2

[slm9s]

Leupold Mark 4 MR/T 1.5-5x20 with the illuminated cmr2 reticle and M2 turrets. I was offered one of these in trade and I know nothing about them. I've seen there advertised around $1100 new, but I can't find any used values. What do you guys think these are worth used in excellent condition?

Thanks.