That's the full size. They offered the 6" with eight round capacity and dripping in rails. The Night Guard was the smaller more concealable version with a 2" barrel. Both were model 327's though.
Is the 6 shot a 329 NG? I had one. That damn scandium frame .44 mag recoiled worse than my S&W 500. If it's "well under $900" buy it now. I've seen them going for between $1000- $1100, sometimes more.