General Reliance manufacturers specilized military grade solenoids for remote weapons stations, machine guns and grenade launchers. The electric solenoids are used for solenoid controlled triggering. Our designs have been thorougly tested in the field and offer the highest reliability and performance, and are found in the following: M2 Browning Machine Gun - Solenoid TriggerM2HB Heavy Barrell Machine Gun - Solenoid TriggerM240 Machine Gun SolenoidM 249 Machine Gun SolenoidMark 19 MK19 Grenade Launcher - Solenoid Triggering