Think this should be in the comic book forum since DD last time I checked wasn't a member of the x-men.
Anyways info on his weapon taken from wiki:
Daredevil's signature weapon is his specially designed billy club, which he created. Disguised as a blind man's cane in civilian garb, it is a versatile, multi-purpose weapon that contains thirty feet of aircraft control cable connected to a case-hardened steel grapnel. Internal mechanisms allow the cable to be neatly wound and unwound, while a powerful spring launches the grapnel. The handle can be straightened for use when throwing. The club can also be split into two parts, one of which is a fighting baton, the other of which ends in a curved hook. Daredevil has extreme accuracy when throwing his club, and can hit multiple enemies with ricochets.