http://www.house.leg.state.mn.us/hrd/pubs/firearms.pdf Purchasing a Pistol or Assault
Weapon without a Permit
If a pistol or assault weapon purchaser does not have a
transferee permit at the time of sale, the federally licensed
firearms dealer may not transfer the weapon to the purchaser
immediately. Instead, the firearms dealer must submit a
transfer report to the police chief or sheriff in the area where
the purchaser resides, containing the same information
required on the transferee permit application form.
Upon receipt of the transfer report, the law enforcement
agency must investigate to determine whether the purchaser
is prohibited from possessing a pistol or assault weapon.
Unless the law enforcement agency waives all or part of the
waiting period, the dealer may not transfer the weapon to the
purchaser for five business days, nor transfer the weapon to
the purchaser at all if the agency identifies the purchaser as
ineligible to possess the weapon. If no notice of
disqualification is received within five business days, the
pistol or assault weapon may be delivered to the purchaser.
A notice of disqualification may be appealed to the local
district court.