TruGlo Red Dot Crossbow Scope Dual Color Red/Green - TG8380B4.p- Shock-resistant.br- Waterproof / Fogproof.br- Two choices of reticle color for contrast against any target / background (red and green).br- 24 x 34mm window for ultra-fast target acquisition.br- Four different descending dot patterns to match the trajectory of your crossbow.br- Integrated Weaver-style mounting system.br- 7/8" wide dovetail.br- Manufactures Lifetime Limited Warranty.