Hey guys. Last week I got ahold of a Smith and Wesson M&P 15-22. Its a cool little plinker of a gun. The one thing about it I noticed right away was the stock on the gun. It seemed to me like it was very badly constructed. It rattles around when you the move the gun or raise it instead of feeling firm. Would a replacement stock, like a magpul, fix this issue? Or is this just what you get with a $500 gun?