Concussive Truncheon

 is a Melee Light Artifact weapon in Torment: Tides of Numenera.

Description
This weapon releases a pulse of disorienting energy when striking the enemy's more vulnerable parts.

Location

 * Circus Minor: Sold by the Arms Merchant.

Note
It's one of the best Speed weapons for mid game, since with 5 Edge+Effort it gets to 19 base damage per hit + stun on crit. If you want it, be sure to buy it before leaving Sagus Cliffs, as you won't be able to do so later on.