Keep dreaming. A Lothar Walther CF premium blank is fairly expensive and more costly to machine. If all their MLs had LW premium grade CF blanks they would be singing it on the mountain like they are their centerfires. LW makes one of the strongest SS barrels available called LW50. Similar to 17-4 or 420SS in durability which is tougher than 416R but harder to machine also. . SO that leaves LW19 which is their CM steel since Traditions dont offer SS barrels. LW19 is similar to 4340 and again a harder steel to work with than standard 4140 which is SUPER common for barrel use. Most big vendors probably use 4140CM steel for barrels. Knight has been using 4140 GM barrels for ages and now uses mostly 416SS. The vast majority of 2010 and newer CVAs are 416.
Put the G4 on a scale with a scope. The G4 without a scope says 5.75lbs too. I guess the scope weighs nothing? Lets see it. Care to guess any other ways they saved on weight like using a plastic trigger guard? Hollow buttstock maybe? It sure aint a kevlar/graphite composite like my NULA for that price. Yes 5.75lbs is a nice weight for a bare rifle but it had very little to do with using CM steel for the barrel. If they switched to LW19 blanks that is very commendable but i find it highly unlikely.
Look here. I guess it dont weight 5 3/4lb WITH the scope
Without the scope, this rifle weighs just 5 3/4-pounds - easily making it one of the lightest (if not the lightest) .50 caliber break open No. 209 primer ignition muzzleloading big game rifle on the market. Even with the Hi-Lux Optics 3-9x scope ... base ... and rings, the entire rig weighs in right at 7 3/4-pounds
Base price for the G4 is just over $300 at ML.com. The comparable Optima V2 in 416SS with nitride is $348 with a 1 piece scope mount or $360 for the LR version.