Its hard to explain the principle, but the idea is in a browning tilting action, the barrel is the short recoil mechanism. But what if you used the chamber itself as the action. Or around the chamber. And I am not talking about roller delayed, but that is a similar concept. What I am talking about is more akin to radial delay, but in a pistol. A pistol that might fit the bill is the Remington R51. I am not fully aware of why the gun was truly unreliable. Was the design bad? Or was it just very poor quality control or trying to simply make it too cheaply. It used what's called a hesitation-locked action. Remington used it before a long time ago. And before you say who cares? Tilting actions work just fine. I know, but I love fixed barrel 9mm pistols. They're just so cool and they circumvent some issues that tilting barrel guns have like adding compensators, suppressors, etc. And what's nice about this design is that its mechanical and not gas operated like many fixed barrel 9mm pistols. If I am not explaining myself well, let me know. Thank you for your time and I look forward to y'alls responses.