Eternal Commander MK-M Saberstaff

All Lightsabers with the Kira sound type have the same sound, including the Eternal Commander MK-M Saberstaff. This isn't the official name, and this Lightsaber sound type may be labelled something like weaponmeleelightsaber11 in the background of the game.

I do not have a video of the Eternal Commander MK-M Saberstaff, but you can watch a video of the High Roller Lightstaff weapon to hear the Kira sound type, which is the same as the Eternal Commander MK-M Saberstaff.

Read more about these weapons at the Tech Fragments Guide page on Swtorista.com.

These weapons can be purchased directly from a vendor called the Cosmetic Weapon and Weapons vendor (Z9-V86 droid) in the Supplies section of the Fleet. The versions from this vendor are Bind to Legacy. These weapons do not change between factions and you can buy all the sets on either side. Each piece costs 3,500 Tech fragments plus 500,000 credits, so a full set is quite expensive, but is accessible even to free-to-play players if they save up and buy the set piece-by-piece.