Dep
You're kidding right?

Silent arrow rests: they even got em for longbows. Oh and a crossbow has that.

Stabilizers: OK but a crossbow would have em if it helped

Vibration shocks: huh? I assume your talkin about stabilzers again.

Lazer sights: Illegal where I hunt but can be adapted to crossbows too

Longer arrows: Huh again? Thats just plain ridiculous!