My son's 11-87 is having a feeding issue - it's several years old and was well-used when he got it. I pulled the trigger group completely apart, cleaned everything... the shells are popping out of the magazine as they should, but they're just sitting on top of the carrier. If I depress the carrier button, and raise the carrier, then the bolt will go ahead and cycle the round into the chamber. I have an idea there's an issue with the carrier button and a little quasi-horseshoe shaped vertical piece of steel that the carrier-button seems to be getting hung on. Or maybe the bottom of the bolt isn't grabbing it and pulling it all the way back. Any thoughts? I'm about half inclined to just throw out the whole trigger group and buy a new one.