M320-A5 Enhanced 37mm Grenade Launcher Module

Being prior service (Marines) i have used the 40mm M320 several times and really liked them. I saw this and tried to find out more info on it (mounting, reliability, functionality, etc) sadly there's not alot on this product. It looks like the Turkish Kale Kalip KGL40, But I can tell you the functionality of the M320-A5 (37mm) is better than the one 40mm we had in the Marines. The M320-A5 (37mm) can be used as a standalone launcher without having to carry additional parts and modify the launcher for standalone use or you can mount the launcher to any rifle/firearm with a picatinny rail long enough. You remove the M320-A5 stock and can slide the launcher on anything with a picatinny rail and the spring-loaded latch on the launcher will lock on the rifles pic rail you might have to remove the launcher sights (2 Allen screws) to slide the launcher on a rifle that has lights/lasers on the side, than just reinstall the sights back on the launcher. The leaf sights can also be mounted on the opposite side of the launcher. The M320-A5 (37mm) arrived in a cardboard box stuffed with Styrofoam. The launcher also came with a magpul style 2 point (can be 1 point as well) sling. A nice cleaning kit (Case, 37mm nylon brush, 37mm Mop, threaded rods, nylon brushes, & cotton patches) The Launchers latch to open the breach is simple, ambidextrous and pulls downward instead of upward (like the 40mm) The M320-A5 (37mm) frame is all metal along with the tube, stock, pic rail, & leaf sight. The pistol grip, breach latch and launchers leaf sight mount feel like its a heavy duty polymer. The M320-A5(37mm) has a QD mount on the stock and 2 Ambi sling mounts (removable) on the front. I shot the launcher after getting the ammo a week later (Exoticammo.com) and it performed remarkably well and operated as designed! I gave the launcher 4 stars because I dont know the lifespan of this launcher.