One of the better 40mm launchers for airsoft use is the ICS-90 MGL with retractable stock. It has an adjustable stock with 3 dip-angles and 6 lengths selection as well as being fully licensed from Milkor. Rock Bottom Airsoft takes a look at this launcher to give what he thinks about it... "In this video we unbox and have a look at the ICS MGL Airsoft 6 shot 40mm launcher. This is a replica of the MILKOR defence launcher currently in use with various services."