I have five carbines I'm trying to set up exactly the same. Three of them are RRA 16" carbines and are basically how I want them and the other two are DPMS 16". I'm looking into this most cost effective way to get them all consistent.
My problem is the DPMS guns have railed gas blocks (which incorrectly had MBUS mounted to them before, that's a long story). Instead of a flip up front sight I was looking into dumping those and getting F marked A2 sight bases. The flashlight mounts I'd like to use clamp to the A2 bases.
What I have:
In googling the question it seems like most people are doing the opposite of what I am, so I'm having difficulty trying to figure out exactly what is involved. The F marked A2 bases aren't exactly as common as what I would have thought. Im not familiar with what is needed to drill in the pin holes, either.