For my birthday I received a Blackhawk! Specops NRS stock kit for "870 Pump Shotguns." I decided to put this to use reassembling an 870 Police Magnum I have laying around in parts. I'm finding that the Blackhawk foregrip does not clear the action bars of the 870, however. I'm not keen on "tapping" it in since that looks like a splendid way to bend or break one or both of the action bars. The only other option I see here is to take a Dremel and grind the inside of the new pump grip so it will clear the bars, then tighten it down with the nut. However, I obviously have some concerns about this. I'm wondering, is this even made to fit a Police Magnum? I don't have an other 870 to compare it to... Wanna kill these ads? We can help!