I've owned about 7 of these in the past. I still own 2 (both target versions in 4.5" and 6" barrels) .
The difference between field and target versions are: Field has black plastic grips and fixed sights. The Target versions have walnut grips with a medallion inset in them and narrower front sight/adjustable rear sights. That is the only differences.
If it is the field version , I'd say $350 with one mag. For a target , I'd pay $400+. The mags are like hens teeth. I have 4 and it's taken me 12 years to get them....beware if you find online mags. I've ordered the wrong mags mistakenly because the ad said "fits model 41,2206,622,422" The mag catch is slightly different on the model 41 and will not engage 422 mags. They look the same but are slightly different enough to not work without filing. Don't worry if it is a field version, I was plenty good with the fixed sights. There is no grip advantage to the walnut grips. They just look nicer. All of mine ran like a top, and are super easy to field strip and clean. I love the low barrel axis.....and the confused look people get when the pull the slide back and expect to see a chamber, and see flat metal. They always look at me as if to say " I think your gun is broken" LOL