Long answer : Bullet proof is a misnomer, everything, even the air, will eventually stop a bullet. You can get a suit with ballistic fiber which will work against small and slow calibers. Keep in mind that the damage a bullet does is more than just perforating your clothing. Body armor has a rating system telling you what kind of rounds it can mitigate, although most rifle rounds require some sort of rigid plate to prevent penetration and also dissipate the impact over a large surface area. A thin, flexible bullet resistant suit or jacket is not going to do either of those things very well.
Where can a civilian get a good bulletproof vest?
In the US I’m pretty sure you can just buy them online.
https://www.spartanarmorsystems.com/
Do John wick style bullet proof suits actually exist (and work)?
Short answer : No
Long answer : Bullet proof is a misnomer, everything, even the air, will eventually stop a bullet. You can get a suit with ballistic fiber which will work against small and slow calibers. Keep in mind that the damage a bullet does is more than just perforating your clothing. Body armor has a rating system telling you what kind of rounds it can mitigate, although most rifle rounds require some sort of rigid plate to prevent penetration and also dissipate the impact over a large surface area. A thin, flexible bullet resistant suit or jacket is not going to do either of those things very well.
They sell plate carriers at my local gun store.
Lol all over
Are you American??? Or a spy?