S&W 1000 20ga Auto?

[TRAP55]

Anyone own one in 20ga and/or 20ga mag?
I need some measurements from the forearm.
I have three NOS high grade stock sets I want to sell, but need to know if they are for the 20ga or 20ga mag. They were suppose to be 12ga stock sets when I bought them.
I own two 12ga's, but no 20ga. so I don't know if the mag version is different or not.

[TRAP55]

Nobody?
Mossberg sold the same shotguns with the same model numbers for a couple of years in the late 80's after S&W dropped the product line.