Defecting away from darts

Recently, I have been trying to find a replacement for dart blasters, and I have come up with two promising ideas. The first idea is a crossbow. Crossbows have been around for over a millennium, and dart blasters have been around for what, less than 40 years? So, crossbow technology will probably perform far better than any dart blaster ever could. Even with disc blasters coming out, those don't seem too promising, either. Ring blasters may outdo crossbows in range, but high-performance flying rings have to be tuned perfectly, and retuned often. Crossbows have to be tuned once, and only once, and each shot is extremely reliable.

My idea for a Nerf crossbow came from a Nerf-ified youth bow i saw at my brother's Nerf LARP party he had about a year ago. It could scarcely fire over 35 feet, but it was still a very weak bow. The crossbow and head I'm looking at should prove far more practical. The crossbow puts 80 foot-pounds of kinetic energy into the bolt, which is only twice that of my current Nerf sniper rifle, the Pinpoint. however, the Pinpoint shot darts, which lost over 75% of their kinetic energy from various forms of aerodynamic drag, even autorotation. Over the millennium that crossbows have existed, that has nearly been eliminated.

Crossbows, unlike darts, are quiet, sleek, and accurate to less than an inch. 

Problem is, they're a bit pricey, but that's the only problem I can think of.

Anyway, here are the crossbow and heads I'm eyeing for this project:

 

On to the next idea, which is a flying ring. Nerf already has one, but the modification is in how it's used. I took inspiration for Tron, which, by the way, is pretty awesome.
If a picture is worth a thousand words, 2000 more words should explain the idea enough.

 

It does miss out on the melee part of the the idea, which is simpler: Throwing a disc at your opponent is not as reliable as hitting them with it.

In conclusion, I will say that I am open to questions and comments, and also ides for what mods I could do for money.