M320 Enhanced 37mm Launcher
Features:
Rail mounted no special hardware mounts to multiple weapon platforms
More shock absorbent stock
40mm rated military grade Receiver
Forward mounting rail 
Compact sight assembly ambidextrous mounting
Textured Pistol Grip for better handling
Removable trigger guard
Ambidextrous downward pull for 1 finger barrel release
Quick Detach sling attachments 3 point sling
Specifications:
Caliber: 37mm
Width: 3.5 inches
Height: 8.07 inches
Weight with Magazine: 3.3 lbs
Sight Radius: 5.8 inches
Barrel Length: 11.02 inches
Overall Length: 13.07 inches
Description:
The M320-A5 Enhanced 37mm flare launcher module is a stand alone and rail mounted launcher designed for military and law enforcement application; to be used in conjunction with the use of less lethal ammunition. Similar to H&K's GLM but enhanced with upgraded features; there is no special mounting hardware needed to mount directly on any weapon with a picatinny rail hand guard such as the M4, M16, 416 ,417, G36 , SCAR etc 
Special limited production of 37mm launchers from military manufacturer KaleKalip
Similar to the H&K 40mm