It's made on a 20 gauge receiver vrs. a 12 gauge receiver.
Since the "Sweet Sixteen' was introduced in 1936 and the first 20 gauge A-5 was introduced in 1958, HOW can the "Sweet Sixteen" be built on a 20 gauge A-5 receiver....?......
Production of the A-5 began at F.N. in 1902, with the first gun shipped to the U.S.A. on September 17, 1903. Twelve gauge guns were usually offered in the U.S.A. until 1925, but production of the 16 gauge A-5 began in 1909.....and the
name change "Sweet Sixteen" was introduced in 1936.....
http://www.browning.com/customerservice/qna/detail.asp?ID=202
