Shep - sounds like a nice BAR you picked up (where's the pics ; ). Doesn't sound like you have the MKII though...I think those didn't start being produced until 1993. The MKII are also known as the BAR II. The Safari models are probably the most popular. I actually have two BAR MKII's...one in 7mm and one in .270 (working on getting one in 30-06 as well).
For anyone wanting BAR serial # info, this is a great link from Browning's site:
Enjoy that Browning Shep!