The cross slide vise is the way to go. I use one I got at HF on a table top drill press. It was hard to fit at first, then I turned it at 45 deg. and it works fine. I have completed a 1919a4 build & a CZ24 tube build, working on a Romanin RPK now. It doesn't have the speed range I would like, but for about $70 who could argue.