I have a 6 lb H grade Lefever with 28" Twist barrels. It is Not made on the XX frame either. This is the only 12 ga Lefever i have which weighs less than 7 lbs & my only 16 goes 6 3/4 lbs but there are some light weights out there. There would have been more made if people would have ordered them that way, they were offered my most of the better makers at least. It seems that a century or more ago in the US light weight was not particularly in demand.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra