I have a dedicated 9mm upper that I want to install on a std. AR lower. I am told that I need a mil spec buffer tube, 9mm buffer, & 9mm buffer spring. I'm haveing a little truble finding the parts. Mil spec tubes seem to be much more scarce that commercial ones. Can someone suggest a vendor? Have I missed any required parts on this build?
It's too late for me, save yourself.
7 years 14 weeks ago, 2:59 PM