I won't be sharing them immediately. I plan to be selling these parts to recoup some of my development expenses. Eventually I'll be releasing the files, but not initially.
I would love to buy a kit once you complete it, i have so many unused nerf guns that i can convert into Halo weapons, and i absolutely love the sniper rifle
When I made my reach Sniper rifle I used 1 inch aluminum piping and its super strong and super lightweight. Not sure how you're gonna attach it to the rifle but that's a good material option.