I realize the second model is lighter in weight, but where does the weight savings come from?
I own one of those and love it.
As far as your question goes, the pictures look the same.
Same with the specs, besides the weight.
It does have this in small print at the bottom though...
NOTE: Weights listed are approximate.
Images, photographs, etc. shown do not necessarily represent the product in its entirety. They are shown for examples only.
The light one was $50.00 more, so maybe they meant your walllet.
I read somewhere that heaver one has an all steel barrel, while the light one has an aluminum barrel sleeve with a steel liner much like the Tactical Solutions aftermarket barrels.