If it is a tube fed, it will be a model 81, instead of the 80. I have both, the 80 is a great rifle, smaller than the 81, and clip fed. My model 81 is a good rifle too, bought mine used for $100 a year and a half ago. It has a longer barrel, and has the stock peep sights with it. Nice for target, but a little long, and heavy for hunting.