The S&T Sterling Mark 7 AEG submachine gun is a stylish replica of the British Sterling MK7 weapon, also known for its use by commando units and intelligence services. The frame is made of steel. The upper part is cut from a single piece of steel, which increases the rigidity of the structure. The front sight, rear sight, magazine housing and case ejection port cover are welded directly to the frame, which increases the durability of the structure. The weapon has a Picatinny rail on top, which allows the installation of an optical sight. A silencer and an extended outer barrel are also included.