Good evening to you!! The red line of the grip handle is no longer on there due to the redesign of several of the grips of the Taurus handguns. The inserts are to be installed. Hope this helps. Have a good rest of your day.
🇺🇸🇺🇸 'Merica' 🇺🇸🇺🇸

Hi David and welcome to the community. This is a newer model Raging Bull of which Taurus has blended the rear cushion backstrap black as shown on their current model website here; -- taurususa.com/firearms/revolvers/raging-hunter/ -------- Cheers and stay safe!