Knex Gun Collaboration Project

A friend challenged me to a one v one knex gun war the only problem was no turret guns allowed so my tormentor wouldn't be allowed. I need a new gun for indoors-backyard warfare

Would anyone be willing to make an ultimate indoor/outdoor knex gun with me?

I came up with some necessary features

- blue rod ammo or yellow rod ammunition
-rifle
-bolt ( not a bolt action just a bolt-like charging handle)
-compact
-30-50ft range
-good mag capacity(10+)
-preloaded mags or built in mag
-reliable
-sturdy

If you would like to work with me tell me in comments


Pics of a rifle that meets the ammo type, mag size,bolt and,range requirements but needs a good stock and sturdiness