Which buffer tube for JP silent spring?

[montana]

Thanks! I went with a Vltor buffer tube. This is my first build and I went with a Alexander 6.5 Grendel 18” upper. I will post pictures when I get it finished.

You chose wisely, Vltor is the only buffer tube I will use on my builds. Many buffer tubes are poorly made with improper threading. Even a poorly threaded receiver will benefit with a Vltor..