Ask the Community

Hi John and welcome. The markings on a Mossberg 590's are typically found on the receiver, which will be marked "590" in large script, usually under the saddle, while the barrel itself is often marked "590". The 590A1 is distinguished from the standard 590 by its heavy-walled barrel and metal trigger group and guard, features designed to meet military specifications and enhance durability. Cheers and stay safe!