4x Zoom
The item id for Crossbow Scope in unturned is 5030. You can use this ID with the commands below to spawn the item, give it to a player or buy it on a modded economy server.
Size_X: 2
Size_Y: 1
Size_Z: 0.1
Zoom: 4
Blueprints: 1
Blueprint_0_Type: Tool
Blueprint_0_Supplies: 1
Blueprint_0_Supply_0_ID: 5030
Blueprint_0_Product: 67
Blueprint_0_Products: 1
Blueprint_0_Build: 27