Some of them have magazine issues. Some will "stick" and be a SOB to remove, but it's a peoblem easily fixed with some judicious sanding
The one magazine I have is kinda like that. Where does one need to sand (Carefully and slowly!) or polish a bit to clean that up?
Where are extra magazines avilable for $25-30? I have seen a few mags for sale, but generally the prices were higher.
Do model 760 magazines work OK? Magazines for the 742 series of rifles interchangable?