Here's a better pic of the bolt and receiver thread:
A totally noob question but what do you guys mean by "run a tap?"
I am looking into BCM indeed and Daniel Defense and Noveske. It'll prob wait until next month after my girlfriend's bday lol
Well, I pulled the trigger on the Noveske upper...lol
Now on to optics...eotech xps2 or aimpoint ml3?:-P
Evan,
What don't you like about eotech?
Does the Larue flip to side mount require me to get the Larue qd riser for eotech as well? Or can I just run the XPS2 with Primary Arms 3x magnifer w/ Larue flip to side.