Thank you for all the help would the gas block still be from the same company and style but in a .750" ?How much weight difference is there?What about brand of upper and lower?Yeah, contours are one of those personal things. Weight is a personal preference based on need and use. The heavier the barrel/rifle, the steadier it will be on a rest or bipod, which is better for LR and accuracy needs. But, if you want/need a lighter gun for your wife, and something you will be carrying through the woods more than letting it sit on a rest, I'd keep the same exact barrel specs, but order the barrel in a standard contour that uses a standard .750" gas block.