Illinois list black-jack specifically, but also with the general term "bludgeon"
(720 ILCS 5/Art. 24 heading)
ARTICLE 24. DEADLY WEAPONS
(720 ILCS 5/24‑1) (from Ch. 38, par. 24‑1)
Sec. 24‑1. Unlawful Use of Weapons.
(a) A person commits the offense of unlawful use of weapons when he knowingly:
(1) Sells, manufactures, purchases, possesses or
carries any bludgeon, black‑jack, slung‑shot, sand‑club, sand‑bag, metal knuckles or other knuckle weapon regardless of its composition, throwing star, or any knife, commonly referred to as a switchblade knife, which has a blade that opens automatically by hand pressure applied to a button, spring or other device in the handle of the knife, or a ballistic knife, which is a device that propels a knifelike blade as a projectile by means of a coil spring, elastic material or compressed gas; or .....
a billy club, other weapon of like character, or other instrument of like character intended for use as a weapon. For the purposes of this Section, "billy club" means a short stick or club commonly carried by police officers which is either telescopic or constructed of a solid piece of wood or other man‑made material.
A person convicted of a violation of subsection 24‑1(a)(1) through (5), subsection 24‑1(a)(10), subsection 24‑1(a)(11), or subsection 24‑1(a)(13) commits a Class A misdemeanor.
I don't think it's the misdemeanor that's the problem per se but because it is a weapons related charge - you lose your FOID.
I also think it disqualifies you from some non-res CCW permits. I recall seeing a question on some of the forms asking if you'd ever been convicted of a weapons charge -maybe its the PA aplication (can't remember).