It has had the barrel replaced.
3rd picture down makes the trigger housing color look like that plum color, we see from a finish from over seas.
Front sight (best I can see) looks like it has that Saginaw groove on it.
8th picture maybe showing impression of once having a wider band on it.. hard to see.
Stock has some value to it, more if it still has the boxed SG and CC stamp.
Not a Original, but depending on internals..... maybe worth the price of a shooter+
Swivel also looks to be on backward...... maybe marked on the other side?
I hope this little but helps,
Charlie
PS If your still interested ask for pictures of the barreled/receiver out of the stock.