Merr-Sonn Munitions, Inc., also known as MSM, was one of the three top weapons manufacturers in the galaxy during the time of the New Republic, falling only slightly below BlasTech in total revenues. The company boasted a huge line of personal and vehicle weapons in addition to artillery and starship weapons, electronic targeting systems, and personal defenses. Subsidiary companies produced everything from heavy artillery to siege weapons. They also rounded out their product line with electronic sights, armor, and other targeting equipment.