Posted By: Teamjefe
Building a 300 Black Out SBR - 01/15/15 02:40 PM
Ok guys I just got my Saker 762 can in yesterday and now have to build a SBR to put it on. I wanted to get some opinions on lower receivers and uppers. My brother has a SBR built with a Spikes lower and AAC upper. What is everyone else running?