Free Stuff: Antimatter Weaponry

Recent scientific breakthrough resulted in lasers being used to create antimatter. Warp travel anyone? No? Then how about antimatter weapons. Rounds eject subsonically and tracking lasers target the rear of the projectile creating a matter-antimatter reaction accelerating the projectile to hypersonic velocities.

Artillery+antimatter producing lasers+ballistic propellant=antimatter propelled gyrojet rocket weaponry.

Basically everything!