My father has one. Standard military version in .30-06, with bayonet, about in rack grade condition (ala CMP grading).
I have shot it. It's a VERY interesting rifle, and not a bad performer. The Garand is a much more refined gun overall, but the Johnson ran .30 M2 ammo right out and did what it was designed to do quite well. The QD barrel is WAY cool. The "pregnant" mag is kinda odd, but it doesn't get in the way at all and isn't unbalanced or anything. You don't notice it's there, and using two stripper clips to load it was fairly easy. You can load the ten round mag while you keep one in the chamber ready to go, and you can also load loose rounds to top-off the mag anytime you want. The sights are easy to use and good practical combat sights. They aren't as good target sights as the M1, but they're probably better combat sights. They are adjustable for range with a slider and windage with a drum, with a large peep rear. Nothing fancy, but nothing lacking either. A great choice for what it was made for. The bayonet was a spike-like deal that seemed more of an afterthought.
The rifle used the same receiver as the LMG (except for some extra milling on the LMG for the full-auto stuff), and it's a strong rifle. They're fantastic collectables, but you really don't need to worry about shooting them and hurting them. Parts are very hard to find nowdays, but there's not much that will break if you take care of it. I have no doubt that my father's M1941 will outlast him, and likely me as well.
They are around 3 Grand (not Garand
) last time I checked, which was last year sometime. That's a pretty high pricetag, but they're getting quite rare. They have a uniqe combination of history, usefullness, collectability and shootability that just isn't there in other rifles.
Ross