Manufacturers being back ordered for 12+ months only means that the manufacturing facilities are going at full blast not that the pipeline is closed down. A small gun store depends on a distributor and what the LGS gets will be based on that relationship.
But retailers like Bass Pro, Bud's, etc. will be taken care of before any of the smaller shops will. The bigger accounts get preferential treatment because of the huge amounts of product they buy. That's the nature of the beast. Bass Pro spends thirty-five million a year with Remington. I'm guessing they will get restocked before Ma & Pa's Gun Shop will.