Here are a few ideas:
You take the gun to a smaller room and it disappears.
You're left-handed but the gun doesn't support left-hand prefixed properties.
The gun is too big in your right hand but too small in your left hand.
You take the gun to a different range and your beautiful, well designed gun is suddenly too ugly to behold.
You miss your foot because you're standing in line next to a guy that's floating.
Here are a few ideas:
You take the gun to a smaller room and it disappears.
You're left-handed but the gun doesn't support left-hand prefixed properties.
The gun is too big in your right hand but too small in your left hand.
You take the gun to a different range and your beautiful, well designed gun is suddenly too ugly to behold.
You miss your foot because you're standing in line next to a guy that's floating.