Swiss Schweizer Waffen Technik AR-15 223/5.56 30rd Capacity magazines. These are the official magazines of the Swiss Army. STANAG 4179 specs High compatibility Impact / crush resistant polymer construction Constant curve internal geometry Anti-tilt, self-lubricating follower Mil spec. stainless steel spring Extended floorplate Textured gripping surface ***Will not ship to states/counties/municipalites where it is illegal. Please check your local gun/magazine laws to make sure it is not illegal for you to own this item. There will be a 10% restocking fee if delivery address is in an area where this item is illegal by law (no exceptions).*** Magazine Restrictions California: No magazines over 10 rounds will be shipped to customers with shipping addresses in CA except to law enforcement or customers with high capacity magazine permit. Chicago and other counties within IL: No magazines over the below capacities will be shipped to customers with shipping addresses in the following areas. Aurora, Illinois: maximum capacity of 15 rounds Cook County, Illinois: maximum capacity of 10 rounds Chicago, Illinois: maximum capacity of 10 rounds Colorado: No magazines over 15 rounds will be shipped to customers with shipping addresses in CO. Connecticut: No magazines over 10 rounds will be shipped to customers with shipping addresses in CT. As of 10/1/13 in order to comply with CT Senate Bill No. 1160 magazines holding 10 rounds or less can only be purchased if buyer provides a copy of driver's license and ONE of the following: state handgun carry permit, long gun certificate, or ammunition certificate. District of Columbia: No magazines over 10 rounds capacity will be shipped to customers with shipping addresses in DC. Hawaii: No magazines over 10 rounds will be shipped to customers shipping addresses in HI. Maryland: No magazines over 10 rounds will be shipped to customers with shipping addresses in MD. Massachusetts: No magazines over 10 rounds will be shipped to customers with shipping addresses in MA. New Jersey: No magazines over 15 rounds will be shipped to customers with shipping addresses in NJ. New York: No magazines over 10 rounds will be shipped to customers with shipping addresses in NY.