I almost have all the parts that I need to start construction on my SPR. It has taken me so long due to the fact I wanted it to be as close to a Military SPR as I could get. I finally found the freefloat tube they use. It is produced bya company called PRI and in addition use a rail made byA.R.M.S.  that mounts to the top. The front sight is also made by PRI. I discovered their web page after a bit of surfing however there is only pricing no info on how to contact or to order these products. H E L P !!! Does anyone have the contact info for these people. Thanks a bunch.

I'm not sure if PRI has a website, but try Wes at:

[url]http://mstn.biz/[/url]

or check out his thread:

[url]http://www.ar15.com/forums/topic.html?b=7&f=22&t=113592&w=searchPop[/url]

pri-mounts.com