Advanced Armament Corporation or AAC is an American company that develops and manufactures firearms, firearm suppressors, muzzle devices and related accessories. AAC is now part of Remington FIrearms.
AAC has been responsible for numerous innovations with regard to sound suppressor development, among them interchangeable pistons to allow suppressors to be exchanged among firearms with different barrel thread patterns, fast-attach rifle suppressors, and the use of lightweight alloys such as titanium.