There are several type of Class 3 items that are restricted by the National Firearms Act.
Each state can impose additional restrictions on the sale, purchase, and transfer of class 3 firearms in addition to the compliance that is required with the national Firearms Act.
Michigan has several laws dealing with the registration, ownership, and possession of firearms that are changing in January 2009. In Michigan you can own the following items that are regulated the the National Firearms Act:
Silencers (as of late 2011)
Any Other Weapon (AOW)
Destructive Devices (DD)
Short Barreled Shotguns (SBS) *
Short Barreled Rifles (SBR) *
In Michigan you cannot own the following NFA restricted items.
Some AOW’s like Tasers or Stun Guns by private citizens whether or not they are Title II ( Sold by a class 3 dealer) or the individual has a CCW permit.
*SBR & SBS are restricted by the Michigan Compiled laws 750.224b(3) which limits these items to C&R, Collectors items not likely to be used as a weapon but only if the person selling, offering, or possessing the firearm also complies with the Michigan Compiled laws 28.422 (will be amended Jan 2009) and 28.429 ( will be repealed Jan 2009).
Follow this link to find out more about Michigan and NFA restrictions on Class 3 Firearms
Silencers status updated 2012