9mm

RESTRICTIONS:
  Alaska - No Ammo.
  California - No Handguns. No Hi-Cap Mags without a Hi-Cap Mag Permit.
  No Defense/Clip Fed Shotguns. No Semi-Auto Rifles. No M-16 Bolts.
  Los Angeles, Sacramento, & San Francisco, CA - No Ammo without a FFL.
  Connecticut - No Semi-Auto Rifles.
  Hawaii - No Pistol Mags over 10rds. No Ammo.
  Illinois - Ammo requires copy of FOID Card.
  Maryland - No Handguns. No Hi-Cap Mags over 20rds.
  Massachusetts - No Handguns. No Hi-Cap Mags without an FFL.
  No Defense/Clip Fed Shotguns. No Semi-Auto Rifles. No Ammo.
  New Jersey - No Hi-Cap Mags over 15rds without a FFL.
  New York State - No Handguns. No Mags over 10rds.
  New York City, Bronx, Brooklyn, Manhattan, Staten Island, & Queens - No Handguns.
  No Mags over 10rds. No Ammo. No NFA Restricted Items.
  Washington DC - No Firearms. No Hi-Cap Mags. No Ammo.
  Washington State - No M-16 Bolts.
  APO & FPO Addresses - No Ammo.