Which Buffer tube?

[dogbreath650]

Hi - Doing my first build. I have a PSA lower and a MAGPUL PRS stock. I know I need a full length buffer tube but I'm not sure if I need a commercial or mil spec version, which is it? Thanks...

[kwando]

If you have the stock already find out which size that is, then but what you need.

[ray1970]

Pretty sure the PRS uses a rifle tube. They are all the same.

[baglock1]

Pretty sure the PRS uses a rifle tube. They are all the same.

It does. Just go get a standard AR rifle tube. Nothing tricky about this one.