JavaScrept Just copy the ~detail_gold_spc-r-20g-20b-20~cf35b1a3 to a different folder, then rename it to ~detail_gold_spc-r-42g-42b-42~cf35b1a3. And place the renamed file in the game files. That way all guns have that red stripe pattern. I hope I kinda explained it. You can also do it the opposite way if you want all guns to have the other pattern.
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ZarZrak
@ZarZrak