Here is a project that I am working on, I am going to range test it tomorrow and zero the optic. I started with a Bushmaster Patrolman's 16" carbine with A3 upper and added the following: CAA stock saddle CAA Rail adapter CAA Vertical Foregrip C-More CTAC, integrated red dot optic with A2 BUIS On the way is an ACOG type scope. My goal here is to replicate the issue SOPMOD type kit. I will have pics tomorrow of it together. Review of CAA accessories: Stock Saddle- greatly improves check weld and stability, plus it has storage for up to 6 CR123 batteries or smaller parts, good piece of gear. The CAA Rail mount and VFG- nicely made and fit perfectly, there are nicer (read more expensive) options but this meets my needs and will allow the mounting of my white light source and laser without an expensive railed forearm. C-More CTAC - cost from C-More is $444.00 but can be found cheaper on the web. Have played with it on a friends rifle before and it is a good sight system.