http://legislature.mi.gov/doc.aspx?2015-HB-4778
Strikes some text and adds the following:
As I read it, if you're 21+ you no longer have to register your guns or get a permit to purchase anymore. 18+ still need to do so until age 21.(8 ) THIS SECTION DOES NOT APPLY TO AN INDIVIDUAL WHO CARRIES,
POSSESSES, OR TRANSPORTS A PISTOL IF ALL OF THE FOLLOWING
CONDITIONS ARE MET:
(A) THE INDIVIDUAL IS NOT OTHERWISE PROHIBITED FROM POSSESSING
A PISTOL.
(B) THE INDIVIDUAL IS AT LEAST 21 YEARS OF AGE.