I have a JT 9mm upper that they cut the barrel down to 5" for me. Most of the time it will be used as is, but sometimes my buddy and I throw his suppressor on there for some good times, and I'd like to get one in the future as well. We currently have just been using a standard barrel nut and no handguard, obviously not ideal. So I'm in the market for a pistol rail. it needs to be either greater than 1.6" ID, or less than 3.75" in length for full access to the threads.

All I plan on putting on the rail is a handstop on the bottom, and a light attachment

Just an idea, but you could buy any cheap rail and cut it down with a hacksaw and touch it up with black paint.