Special Warfare Combatant-craft Crewmen - Firing M4A1 Carbine
U. S. Navy photo by Photographer's Mate 2nd Class (SW/NAC) David C. Mercil)
A Special Warfare Combatant-craft Crewmen, assigned toSpecial Boat Unit 20, aboard a NSW RHIB (Rigid Hull Inflatable Hull) fires a M4A1 Carbine fitted with M203 Grenade Launcher.
