ONE LIVE 9MM SMAW spotting cartridge for the US Marines 9mm SMAW (Shoulder Mounted Anti-tank Weapon). They are fired from a semi-auto rifle attached to the launcher to make sure the weapon is on target before launching the missile. The cartridge is basically the NATO round necked up to 9mm with a special red-tipped tracer bullet. Inside is a special high-low pressure system similar to the 40mm grenade launcher rounds. A smaller case pressed into the larger holds the charge. This a relatively obscure US military round and quite hard to come by, a great addition to any military collection. DISPLAY ROUND NOT FOR SALE.