I can't answer your question, but I will tell you that the B Mag trigger is NOT a normal accutrigger! It is very different, and mine would not stay adjusted. I finally had enough aggravation and I got rid of the gun. Good luck.
My Bmag trigger is pretty much the only thing I've been happy with. It is definitely different then all other accu's I've seen, but mine works great at its lightest setting.