I have one of the new Remington 870 dm and it’s got amazing machining both inside and out the action runs like hot knife in butter just like any other 870 I owned or used I have never had an issue with any Remington firearm I purchased old or new hell I have one of the 870 tactical s with the factory rail and ghost ring sights they were built on the cheaper line of 870 guns and it has probably 10 000 rounds on it maybe more and never once has it failed to fire or cycle anything I run through it. If I needed a gun to fight for my life I would bring that to the fight with no reservations