Great condition series 191-xxxx Factory Machine gun with 3 rd burst and full auto selector. Recently overhauled with .625 thick stainless steel accuracy barrel and all the modern upgrades thru accuracy systems inc. I will also include second parts rifle I have which includes backup parts of all the important parts should you need it down the road. I also have the original 13 inch barrel it came with that shows light use as well. While they had it we put an Ultimak scout rail on it too.