The exotic Khvostov 7G-0X currently has a mag size of 43 and Alloy Magazine (faster reloads when the magazine is empty). If it was given Extended Mag (greatly increased magazine size, but slower reload) as a second magazine option, from what I can tell this would push it up to 51 rounds in its magazine. At the cost of reload speed, this larger magazine option (which could also be a nice benefit itself) could potentially synergize nicer with Actium War Rig on Titan by surpassing a rounding threshold allowing Actium War rig to auto-load 6 rounds per 1.5 seconds instead of 5. Alloy Magazine might be fine with actium still for reloading for times you happen to deplete your whole magazine, but at the very least Extended Mag could be a neat option. Also, considering the D1 Khvostov exotic was a highly customizable weapon and the legendary version includes Extended Mag as an option, I don't think this would be incredibly out of character for the weapon. [b]TL;DR[/b] If the Khvostov 7G-0X had Extended Mag as a second mag option, it may synergize nicer with Actium War Rig. Thank you for your consideration!