Tier-1-Me goes over the FN40GL airsoft grenade launcher from Cybergun. This is designed for the MK16 (SCAR-L) and MK17 (SCAR-H) airsoft guns so check the compatibility of the version that your airsoft SCAR rifles depending on the brand you got... "In this video I take a look over the airsoft replica FN40GL - the best grenade launcher option for your SCAR-L or SCAR-H."