I guess the first thing to ask is- how old is this weapon? If it's fairly new a trip to Remington may be in order.. Still we may be able to take care of this ourselves. Does the bolt lock into the barrel extension? I by saying the slide won't lock closed you mean the sslide release lever does NOT have to be pressed to allow the slide to be manipulated then the problem is likely with the fire control mechanism. That's the assembly that's removed by pressing out the 2 cross pins in the receiver. The action bar lock is probably at fault. Removing the assembly and pressing the release button should show what is happening. If this is more than you wish to undertake a trip back to Remington or to a local smith may be in order. If the weapon is not heavily worn and is fairly new I would suggest Remington, even though I've been very unimpressed by their service dept in my last few attempts. Of course they are still better than S&W!! If you would like more detailed instructions I will certainly try but I would suggest you look at the mechanism before we continue.
