Walmart is a really different company. They are all about cheaper cheaper cheaper, regardless of the quality of the final item. A few examples.
Levi-Strauss used to make hell of good pants. Walmart contacted them, wanted to sell their pants because they had a good rep for durable goods. Levi jumped on. Problem was, they checked Levi's catalog, and NOTHING levis had was inexpensive enough. So Walmart helped levis find cheaper materials, cheaper methods, chinese labor, etc etc. So in the end you had 'walmart' pants, which were identical to 'generic Kmart' or any other cheap generic pant, except it had a Levi-Strauss label on it. What's worse, now ALL levis sold are this 'generic' model, not the quality product taht used to be around.
See, walmart requires the producer to cut the price of the product by 5% per year. True, in years 1-3 this can be done pretty easily. Year 3 is pretty tough, the company is already running lean. Years 5+ the ONLY way to keep on going cheaper to sacrifice quality.
Snapper or Toro, don't recall wich, was in a similar spot. Walmart approached them sell lawnmowers at walmart, because they were known for high quality product. Then what happens? Everything Snapper has is too expensive, so walmart wants Snapper to make a 99.99 walmart snapper, to be sold ONLY at walmart, snapper can sell the 229.99 push mowers at ace hardware, bob's hardware, joes lawn and garden, etc etc. Snapper said no, no way would they make a supercheap lawnmower and slap on a Snapper label just so walmart could have somethig to advertise and cash in on Snapper's good name, which wouldn't be all that good for all that much longer.
So, if there are walmart only guns made by a company, walmart is getting them cheaper than the standard version. SOMETHING happened. maybe barrelmaker A had a bunch of stainless steel 20 inch barrels and the original buyer went bankrupt, so ruger buys them cheap, makes a special walmart model with them. Not necessarily lower quality than normal rugers, but definately cheaper to produce.
However, mostly, if you see a gunmaker 'retire' an older model and come with a new model that is advertised as 'just as good, even better in fact, but cheaper!' taht is walmart. That new remington boltaction 710 to me stinks of wallworld influence. especially with the bushnell 'sharpshooter' (<--again, specially made for wallyworld) scope that comes with it.
also, if you are seeing what you generally regard as cheaper made firearms overall, that's because those gunmakers that are selling firearms to walmart are also required to cut 5% a year. They make everything cheaper and less well made, not just the ones they intend to sell to walmart.
Otherthings walmart does.
-either requires companies to put in a dedicated walmart line, or has that company sign a form saying they will accept collect calls from walmart
-walmart people who travel for work are required to take pens from the hotels they stay at. Walmart offices do not buy their own pens, they take em from other places.