Kids wanted Scopes for their Zulu X-Shot Vigilante shotguns, couldn't file any existing ones that would fit,
I modified the Nerf scope by @CBuilds, new rail to suit the X-Shot, keeping it support free.
Added Cross-Hair, because cross hairs are cool.
I made it a super tight fit, I didn't want to rattling about. it can be removed with screw driver but it takes some effort, also hard to clip on, so don't expect it to be an easy on\off.
Print as orientated and no supports are needed.
I printed mine in eSun Black PLA+
The author remixed this model.