KellyEnterprises.net, LLC is a Lewis Machine & Tool factory authorized dealer. These are top of the line systems, most of which have removable barrels for changing calibers easily. We are accepting orders on select models at this time. Please feel free to ask on availability for any Lewis Machine & Tool weapon you are looking for. These guns come and go daily, so if you really want one, please call Chuck at 305-923-6560 and I will see what we have to offer you that day. Thanks for looking and enjoy the sites!