I assume it's the 803 that WLM has listed. If so, you're going to love it as it's a real beauty! All Arrietas are wonderful handling dynamic guns and that one will be as well. I own two Arrietas, a 12-ga. 2-bbl. set and a 20; and if you're anything like me the 1st thing thing you'll notice upon shooting one is the trigger pulls. Our Parkers have good and decent trigger pulls, but the Arrieta's trigger pulls are in a different league. The only shortcoming that plagues Arrieta and the other quality Spanish doublegun makers is the ability to hold their value. I don't fully understand why, but that's the way it is.
If you haven't yet seen the YouTube video of the Arrieta shop and Arrieta's skilled and passionate artisans, take a look at this:
https://m.youtube.com/watch?v=J5HoKCDwmD8