US Patent 9541339 Ambidextrously operable firearm receiver assembly

A firearm receiver assembly that includes a magazine release assembly, a bolt release assembly, a safety switch assembly, and a charging handle assembly and wherein at least one of the magazine release assembly, the bolt release assembly, the safety switch assembly, and the charging handle assembly are ambidextrously operable from each of a right hand side and a left hand side of the resultant firearm.