I have both. I like the 870 in close and the BPS for distance. Don't know why but in close the 870 does better for me. Shooting clays and birds the BPS. The 870 will lose it's $$value fast. The BPS will hold on longer. Figure this your getting a gun (if it isn't to old) thats worth $550-650.00 and a barrel worth a few hundred for $400.00, not bad. Good luck with your decision.