You can get the expensive Mantis Blades for free.
The Mantis Blades are one of the most popular cyberware options in Cyberpunk 2077, largely due to their appearance in the game’s very first teaser trailer from 2012. These deadly blades extend out of the user’s forearms, surprising any foe unlucky enough to be caught in their way. Because of their power and utility, the Mantis Blades are usually unobtainable until late in the game. They’re typically sold at ripperdocs all throughout Night City for a high price, but they won’t even sell them to you unless your Street Cred is high enough. Thankfully, there’s a way to bypass these restrictions and walk away with these weapons entirely for free.