Abstract: A portable catapult device that includes a wishbone shaped frame defined by an elongate shank and two laterally spaced forwardly disposed arms. The whole device composed of a molded one piece design. The arms support two transversely slotted heads. The slotted heads are removably engaged by two elongate elastic members in such a manner that when the members are tensioned by being drawn rearwardly and then released, a pouch connected to the rearward ends of the members in which a projectile is disposed in a self-centering position is propelled forwardly to remain in contact with the projectile until the pouch moves forwardly beyond the arms to a position that is substantially the length of the members. Due to the pouch remaining in contact with the projectile for the maximum length of travel, the projectile is discharged from the pouch with the maximum velocity possible with the particular resilient members that are used. The shank functions as a shield for the forearm of a user.