The original Swiss SIG 5 hundred series rifles are incredible rifles. For a while in the '80s the Swiss rifle club in Montreal had a bunch. Just about every piece had that, 'Humm? what can we do better' look of engineering perfection. I liked the see-through mags, the rubber gasket on the cocking lever slot, the drum sight, the fold-over trigger guard, the really comfortable grip, the best-ever folding stock, the bipod, 300m accurate ... And then the feds decided they had to be made prohibited.
The current Swiss rifles are apparently slightly less refined, but hopefull just as good.