Energy Chakram

"Those were energy chakrams. Fast, silent, and deadly..."

- Commander CC-1138 "Bacara"

 were throwing weapons created by Sienar sometime prior to the Clone Wars. They were prized for their sleek, elegant design, as well as their simplicity. They were also very deadly, and were prized by assassins due to their silent flight. However, due to the existence of blasters and sniper rifles, and because they were so expensive, they were very rare in the weapon industry. Nevertheless, a few select individuals managed to get their hands on these rare weapons, the most notable of which was the assassin droid BX-1138, AKA Impetus the Hunter.

Details
The energy chakram was circular in shape, causing it to spin in flight, making it very aerodynamic. It contained two circular blades; one of metal and one of energy. The energy portion of the blade cut like a lightsaber, and could easily decapitate an opponent when thrown from a distance. It also could ricochet off of a wall or a solid surface, which, if thrown in pairs, could create a "scissor" effect when it hit its target. They were designed to ricochet off of hard, stationary objects (i.e. walls, tree branches, etc.), and slice clean through softer objects such as skin, cartilage, or other organic tissue. The energy portion of the blade could also be remotely deactivated, allowing it to embed itself into those solid surfaces. The weapon was also equipped with a remote explosive, which could be detonated when embedded. However, due to the rarity and cost of the weapon, its use as a remote explosive was seldom (if ever) used. The energy portion of the blade could also be deactivated for easy transport when not in use.

The weapon was thrown like a conventional frisbee, but its trajectory could also be controlled via remote.

It also could be used in hand-to-hand combat as a way to block melee weapons such as vibroswords, axes, and even lightsabers; or as a punching weapon.

History
The energy chakram was first used during the Stark Hyperspace War. However, they were nowhere near as popular as conventional blasters, and were mostly phased out. However, due to the simplicity of the design, the weapon continued to be manufactured in limited numbers. The most use the weapon saw was at the hands of the assassin droid known as Impetus the Hunter, who used the now-antiquated weapons to great effect throughout the Clone Wars, Galactic Civil War, and the First Order Era.

Behind the scenes
The energy chakram was based off of real world chakrams, which originated from India. The real world chakrams operated in a similar way, except without the remote control, blades of energy, or remote explosives and such. Simply put, the chakram was a killer Frisbee, or an oversized shuriken. They were used primarily by the Sikhs and Rajput warriors.

The chakram and variations of it were popularized in media through TV and Movies such as James Bond, Tron, and Xena: Warrior Princess.

Ironically, though the energy chakram behaves a lot like the Tron Laserdisk, I had already come up with the concept long before I ever saw Tron. Great minds think alike.