Mich. Comp. Laws § 750.506: Optional jail sentence for first offenders convicted of felonies.

Sec. 506.

Optional jail sentence for first offenders convicted of felonies-Whenever any person shall be convicted of a first offense herein declared to be a felony, punishable by imprisonment for a term of not more than 5 years, the court may instead of imposing the sentence provided, sentence such convicted person to the county jail for a period not to exceed 6 months.