The Sentry Rocket Launcher is equipment that appears in Call of Duty: Modern Warfare 3, specifically in Survival Mode in the Equipment Armory. It is able to be picked up and moved similar to the Sentry Gun. It is a modified SAM Turret that locks on to Airborne and ground targets, it functions as a more powerful Sentry Gun. It fires a barrage of rockets at a rate between the Sentry Gun and Sentry Grenade Launcher.
SAM turret