The Adventure Force Aeon Pro is part of Dart Zone's line aimed more towards hobbyists, packing much higher power and half-length dart usage/compatibility. Naturally, it still seems to be only available in North America, however
Blastertech imports and sells them locally. I bought one from them during their Australia Day (Jan 26) sale.
Funnily enough, this is actually my first real foray into half-length darts.