Im thinking of getting a new upper for my DPMS AR15. It will be M4 style more than likely. Do i need to worry about headspacing or do i just slap it on and start shooting?
I was pretty sure that was the case, and the only folks I see with the gauge are guys who are constantly tweaking their uber benchrest long range shooters.Specifically, the AR is headspaced at the barrel, it is permanent, and cannot be adjusted. In general, unless someone screws up real bad, a new bolt and a new barrel will automatically be headspaced.
If you're the DIY type, you can always just get a JP spring kit and smooth out the contact points on the trigger group.Cool sounds good, thanks for the info guys. What about trigger? My trigger sucks something awful. I just want a plane jane trigger with about 4 pounds of pull, can any one recommend a specific trigger from some where?