*NOTE: Apologies for the sound issues, Vic had problems with his mic during filming and had to overdub* Before the now-famous M203 came the XM148, developed by Colt to fulfil the US Army's requirement for an underbarrel grenade launcher for the M16. Over 20,000 were made but, as Vic explains, a number of problems with the XM148 were found during extensive troop trials in Vietnam. Accompanying Vic's video, Matt has written a in-depth accompanying blog on the Colt CGL-4 / XM148, over at: https://armourersbench.com/2019/02/19/colt-cgl-4-xm148-40mm-grenade-launcher/ If you enjoyed the video please consider supporting our work via Patreon, TAB is a viewer supported, non-monetised channel and any help is very much appreciated! Check out our Patreon page here: https://www.patreon.com/thearmourersbench Where to find TAB: https://armourersbench.com https://facebook.com/armourersbench https://ko-fi.com/armourersbench https://www.patreon.com/thearmourersbench https://www.instagram.com/armourersbench https://utreon.com/c/Armourers-Bench https://imgur.com/user/ArmourersBench https://discord.gg/DAjRSBc Don’t forget to like, comment, share and subscribe and help us spread the word!