Lastmonth, I shot a Remington 870 that had the Knoxx stock. It was pretty interesting . . . the stock doesn't "unlock" and collapse until a certain amount of recoil hits it. With the low brass cheap Walmart loads, it didn't break loose. But with 00 Buckshot, the mechanism allowed the stock to unlock and reduced recoil a bunch. Only issue I would potentially have with a rifle is eye reliefbehindthe scope.