Lasers also will tend to give you away. If you can't afford a or source a laser, buy a NV compatible EOTech XPS, EPS series, or Aimpoint T1 etc. They can be found in retail stores.
Here is a video at TTAC demonstrating passive vs active NV sights.
Although you can't hipfire anymore, you sure can surprise the other team
https://www.youtube.com/watch?v=qEcSSRSrav0