Designed to fire 40mm low velocity and low velocity extended range grenades, 40GL Mk1 features a patented drop down barrel design for quick loading/unloading of ammunition, and a double-action trigger mechanism that activates and releases the hammer in a single trigger pull. 40GL Mk1 is lightweight and versatile – it can be easily configured as an under barrel or stand-alone grenade launcher without any tools, or fitted with a Fire Control System for air burst programming.