This is their reply to my e-mail, Please note this is a chrome plated gun, and only bought two months.
If it is not properly maintained it will rust. Chrome is a metal that can
easily rust if not maintained. We would be happy to address the magazine
release but the finish would not be covered under warranty. If the gun is
not properly oiled it will continue to rust as well.
Chrome is porous to some degree. What is corroding is the metal beneath the
thin plating. This does not happen to a gun that is well oiled.
Please refer to the warranty information on page 28 of your owner's manual
(attached.) Failure to provide proper care and maintenance is not covered
under the 1 year factory warranty. A gun that is properly oiled will not
rust. If you would like to have the gun refinished in brushed chrome the
cost will be $500