KSA 21-4201. Criminal use of weapons. (a) Criminal use of weapons is knowingly:
(1) Selling, manufacturing, purchasing, possessing or carrying any bludgeon, sandclub, metal knuckles or throwing star, or any knife, commonly referred to as a switch-blade, 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 any knife having a blade that opens or falls or is ejected into position by the force of gravity or by an outward, downward or centrifugal thrust or movem

this is interesting.. so just possessing and illegal weapon is already consider a use for crime.......


however,


(j) Violation of subsections (a)(1) through (a)(5) is a class A nonperson misdemeanor. Violation of subsection (a)(6), (a)(7) or (a)( is a severity level 9, nonperson felony.
(k) As used in this section, "throwing star" means any instrument, without handles, consisting of a metal plate having three or more radiating points with one or more sharp edges and designed in the shape of a polygon, trefoil, cross, star, diamond or other geometric shape, manufactured for use as a weapon for throwing.
History: L. 1969, ch. 180, ? 21-4201; L. 1978, ch. 365, ? 1; L. 1981, ch. 145, ? 1; L. 1982, ch. 135, ? 2; L. 1982, ch. 136, ? 1; L. 1986, ch. 126, ? 1; L. 1992, ch. 298, ? 67; L. 1993, ch. 291, ? 146; L. 1996, ch. 149, ? 4; L. 1999, ch. 164, ? 12; L. 2002, ch. 123, ? 3; L. 2004, ch. 83, ? 1; L. 2006, ch. 32, ? 20; July 1.
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Looks you are saved, if you were just carrying it, then it seems like its a misdemeanor



http://kansasstatutes.lesterama.org/...2/21-4201.html