Could i also get a copy of that PM! I'm looking to have my 870 drilled and tapped soon. I wont be able to swing a fastfire this year so i'll be using a millet tube style red dot with a weaver rail. My question is, is there anyway i can get my gun drilled now and use the millet that would be the same for a fastfire with the marlin mount? or would it require a separate set of holes to be drilled? Thanks