Chinook,
Welcome to the forum!!
I see that your original ? has been answered.
As far as the internals being different,I am of the opinion that the pups are all the same..
For the outer appearances,that is the difference that one must choose now!!
In "The Day" we only had the choice of sites or no sites!!
We had to take a blue grip CF grip,even if we didn't like it!!
It has been a hard choice my new friend,welcome to the pup!!
Brenden