Will This .308 upper reciever build work?

[ivan_mech2]

Will all these parts go together without a hitch? This will most likely be on a CMMG lower receiver or a JD lower Receiver, also what BCG would work with that barrel?, i know that the barrel and BCG have to be compatible or else you have issues.

http://www.jdmachinetech.com/product/308UPR/308UPR1.html

http://www.jdmachinetech.com/product/308UPRP/JDECH308.html

http://www.fulton-armory.com/barrelfatitan20nmhbarss1x12936gasblock.aspx

http://www.jprifles.com/buy.php?item=JPGS-8