My 700 Pro is solid as a bank vault. I have no complaints about the hinge, except maybe its too stiff.
My chassis came with two grips, one angled and one more vertical. They have a good amount of fore and aft adjustment. I guess one con of the magpul system is that you cannot use an AR pattern grip.
Obviously there are lots of mlock rails. I currently use a pair of pic rails on the bottom and left side for an Atlas CAL and an MK Machine magneto speed mount.
When I was in the process of sourcing a chassis for this build, AI, MPA, and the MDT ACC were all considered. Here in Utah it gets a little chilly and I decided I wanted something that wasn’t all metal to hold onto. Between this and the AT, the PRO had better ergos and more rail space. Fit and finish between the two were the same in my opinion. They both have similar heft. I would have zero problems butt stroking someone with this chassis. It could easily take it without complaint or damage.
Some things I learned after I purchased was that the nvg hood extends too far aft and interferes with the objective of the 5x25 PST optic. If you want to run the nvg hood you will need a shorter optic or you will need to modify the hood.
I bought it from brownells with a coupon code. I would buy again if I was doing it over.
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