Some bayonets have more "wobble" than others. None of your pics show what really needs to also be seen, and that is the whole bayonet freely hanging. If when retracted, it's still inside of the wood slot, I think that's within normal. If it's visibly hanging below the stock line, then your lug is messed up somehow. I'm thinking it's fine, just from looking at the retracted angle, TX. Your bayonet may not be the original one, as it looks to have been possibly taken off at some point. The screw is marred and the peen stakes are broken.