Is the Spikes BCG that much cheaper than DD? While not required, it isn't a bad idea to stick with the same brand for the bolt, barrel/upper - to improve your chances for proper headspacing. Again not required but many of us do it. And it does look better when you're showing it off if the bolt and upper are the same brand. Those DDs on the bolt are noticable as is the spider.
The biggest issue with assembling an AR isn't so much getting the parts together right - it's getting the right parts together.
US Army 1966-69, VFW Life Member, Retired Geek
Last edited by Quentin; 03-23-2012 at 02:05 AM.