Even better, just remove the middleman from the equation and make a LMG-esque weapon that shoots lightsaber bullets.
...So then aren't we at blaster rifles at that point?
Well, a lightsaber - Give me a minute.
*Puts on Moderately Analytic Snooty Cap of the Fanboy*
Where was I? Ah yes, a lightsaber has the capability to project a massless form of energy that can cut through almost every common material except (and even this can be circumvented) dihydrogen monoxide. And there's no real speed loss in a hypothetical lightsaber bullet as opposed to the more common blaster types, as the latter is a particle beam.
In essence, you're firing super death bullet swords at a enemy.