Hazel-E feared the worst when Ray J was on the verge of an all out brawl with Diddy‘s sons at a Halloween party … telling us she thought it might end in a hail of bullets.

We got the ‘L&HH’ star in Calabasas on Tuesday and asked her about the altercation between Christian, Quincy and Justin, and Ray J.

Hazel-E says it all happened when she, Ray, Amber Rose and manager David Weintraub were trying to leave the function … claiming Diddy’s sons started circling Ray and chirping him.

She says Ray had a bag with him and worried he might have a gun inside … but she says Chris Brown hopped out of a car and helped break up the scrum.

Hazel’s account adds some color to what we already told you about the near fight … and she sounds pretty thankful Chris was there to calm things down. Otherwise, she says things could have gotten ugly … and dangerous.

We also asked Ray’s manager David about the incident … and he told us there was no way Ray J was going to be pressed by Diddy’s kids.