The receiver is different as it has the adjustment ring on it to take up any slack in barrel to receiver fit as it wears. I believe all the T/D 10/22's are stainless, at least I haven't seen a blued one yet.

I just got the trigger pack back from Bill Springfield today and man is it sweet ! This guy does great work and his pricing and turn around can't be beat Shipped out to Colorado from Oregon last Monday and back in my mailbox this Monday. He has also done a couple AR triggers for me, one in 223 and another in 308.

I had to put the scope all the way to the back with this butt stock so it would fit in the factory carry bag. This wont be a problem once my new folding stock gets here.