They only do runs of the .308 TWO times a year, so the .308 right hand models are VERY hard to come by, let alone a Lefty. If you want it that bad, you'll have to be VERY persistent and call every week until you get one in .308. It could take a year, no joke.
It is Not being discontinued. They can surely get you one in another caliber so that proves the "two runs a year" comment. I can go order one in every caliber right now in every caliber except .308. Most online sellers have it in the other calibers.
There are 30 for sale on gunbroker, none in .308. Correction, one for sale, right hand model.