Thanks Bill , but I may as well let the cat out of the bag so to speak. I had some problems with the MPR some mechanical, some not ; what it boils down to is I think I got a lemon and part of the problem was I was taking a gun that was designed for one type of shooting(10 meter) and trying to make it work for another type (field target) and it was getting to be too much , so I sent it back to the dealer who agreed to take it back and let me spend my money on a different model , one that comes from the factory set at 12 FPE . I;m getting an Air Arms S410C which will be a match form my S400C except it will be a multi-shot with a 10 round magazine. I received the muzzle brake and it is gorgeous ; but it won't fit my carbine , the barrel is smaller . I have a friend who has the MPR F/T ,a factory field target version of the one I had, and I'm going to see if he would like to dress up his baby. kirby