When I set up my wife’s PFS, LOP less than 14”, The split ring (mounting block for comb) had to be moved back quite a bit to make room for the “figure 8” brace and the compression of the stock. This put the comb to far back. To correct this I made up two of these brackets that move the comb forward 3/4”. It also has two threaded holes for set screws to rest on split ring for reference. $50.00 shipped to the lower 48 payment by money order Goes to the first “I will take it” posted under this add