I'll admit, I'd rather swim in the mud with an AK rather than an AR, but if your AR (assuming it was issued?) was finicky enough to jam in humidity or because i

I'll admit, I'd rather swim in the mud with an AK rather than an AR, but if your AR (assuming it was issued?) was finicky enough to jam in humidity or because it hadn't been cleaned after an outing, then you had a bad AR. The direct impingement system pros outweigh the cons for all but the serious mudbath situations where you also forget your cleaning kit