Ruger SR22 buttstock change

[MadMarty]

So as per the title, I have a (new to me) Ruger SR22 with a fixed buttstock. I've ordered a new buttstock from Zahal, and am looking for a mil spec buffer tube. Just need something plain jane as it's only a buffer tube. I also realize I need a wrench for the castle nut. Anyone able to point me in the right direction for these from dealers? I see some on eBay for around 30$ all in for the buffer tube.

 

[supernova]

Some of our sponsors frequently have buffer tubes. OSTS, CTCS, Questar come to mind. You can use a brass punch on the castle nut then use some copper remover to get the brass off.

 

[MadMarty]

Checked them out, way too expensive for both parts unfortunately