Stuff you dont see every day . One of the facebook groups I admin is a MAC group. I was talking about building a Thompson drum based Grease Gun tower mag for my MAC 10 and my grease gun mag AR-15 post sample MG and one of the guys at Practical Solutions was kind enough to send me one he had done a while ago to see how I like it before I jumped headfirst into the project. I wont have any range time until Saturday but Im sure looking forward to it.