hey BJ,
That may be the same pack I have (like what wolf killer described) It is a mad dog by stearns. It has that little extra pack that looks like a camel back connected with those plastic clips and you can clip your gun or bow in between. It wasn't that expensive (like 50-60 bucks). The only thing I didn't like was that it just had the two shoulder straps and didn't have a chest strap to connect them for more comfort, but I just rigged one up from an old wading belt. Hope this helps.