6-position buffer tube to a 2-position?

[Lungorthin]

I was gunna say JB weld too.
They have the one that's like a metal putty

 

[sky52]

What can be done to make a stock lock in only two positions? Im wanting to go from fully collapsed to a set extended position without “feeling it out” or relying on numbered slots.

I Does anyone get my drift? Any products offered?

I actually marked my tube with yellow paint at my desired position, from full collapse (transport), i just look for the paint and stop there