I found a used FN PBR at Cabelas last month and I couldn't resist. It's a .308 and its got a 24" threaded barrel with the detachable box magazine setup. I am trying to swap the DBM for the Model 70 1 piece floor plate. Does any one have the parts that they may have swapped out for their own build? I am aware that I would need a stock thats inlet for that setup. Thank you.