Not to necro, but I did the reg mods and they work perfectly. I was getting +3/-3 at the chrony last weekend with the mods and my 4B bolt. This thing is ridiculous now.
US Navy Baller UL'd 07 PMR F/S, PM me if interested! #12 Italian Baller
“The real test of a man is not how well he plays the role he has invented for himself, but how well he plays the role that destiny assigned to him.”