They make two. One at $139 one at $199. The $199 one has an ionbond finish. Is it worth the extra $60 for that one?
If you have 60 bucks to spare, and want a little better finish which is easier to clean, and reduces friction then sure.
For most shooters, no. If you throw 1000+ rounds down range over a few days it will aid in cleaning and help with friction.
Depending on your usage I would start with the $139 and see if the extra $60 could go towards ammo. 