Browning A5 Sweet Sixteen Realtree Max-7 16 Gauge 2-3/4in Semi Automatic Shotgun - 28in - In the not-so-distant past if your buddy uttered the phrase, "Sweet Sixteen," your eyebrows didn't go up because you knew he was talking about a Browning Auto-5 in 16 gauge. The light and trim dimensions made those nimble guns handle like nothing else, and the 16 gauge ammunition proved to be a potent match for most feathered quarry in the field and marsh.