Curious as to the thumb shelf grip options out there. I like the MPA grip but it needs to be usable on an ar platform. I have gotten used to a thumbshelf for pistol grip set ups.
Do the MPA chassis not use an AR style grip tang? I was under the impression that the MPA grips were usable on ARs "with possible minor fitting required." I could be wrong.
Our new injection molded vertical grip is designed for the MPA BA Chassis system. The grip design includes a true vertical interface with the rifle, an enlarged palm swell, trigger finger support rest and the enhanced thumb notch. The grip also comes with our special grip tape for improved...
masterpiecearms.com
"The interface with the rifle is a standard A2 type, so the grip, with potential minor modifications, should fit onto other rifles, carbines and chassis that utilize an A2 Grip."