USMC 0341 Infantry Mortarman Combat Ready T-Shirt. Digitally Printed on soft superior 100% ring-spun Cotton, Triblend, 50/50 premium Soft Style Quality T-shirts. Not Slim Fit Size XXL is Heavy Cotton. A Marine Corps Mortarman (MOS 0341) is a soldier that is part of the infantry.  0341 MOS operates mortars, which are muzzle-loading, high-angled weapons used to provide support for ground troops.  Marine Corps Mortarmen assist Light Armored Reconnaissance (LARS) LAR battalions, infantry squads, platoons, and companies to gain a favorable advantage out in the field of combat. The design consist of a combat skull with crossed assault weapons, Kevlar, Shemagh and the words Mortarman, 0341 USMC, Semper Fi, Do or Die. The artwork behind the model is a clear example of the quality of the design printed on the shirt.