I have one with a 8" bar and one with a 18" bar. They are decent saws that can be had for dirt cheap. I'm talking $25-45. I should know, I've owned way too many saws. Two years ago, I sold over 100 Mac saws to thin out the herd and create funds for another hobby.
I'll have one with me at the ride next weekend I'm sure as there is usually one in my truck.
Joe