Henry Ruggs is now facing FIVE total charges stemming from his fatal car crash this week … including four felonies, TMZ Sports has learned.

Court records show the former Las Vegas Raiders star has been hit with DUI resulting in death, DUI resulting in substantial bodily harm (presumably for the injuries caused to his GF, the passenger), and two reckless driving charges — all felonies.

Ruggs was also hit Friday with a misdemeanor charge of possessing a gun under the influence of alcohol.

If convicted on all counts, prosecutors say Ruggs is facing up to 46 years behind bars.

As we previously reported, Ruggs is accused of speeding in his Corvette while drunk on Tuesday morning in Las Vegas … all while carrying a loaded gun in his car.

Officials say Ruggs reached a speed of 156 MPH … and eventually slammed into the back of a Toyota at 127 MPH — killing a woman and her dog.

In video, obtained by TMZ Sports, you can see in the moments after the crash, Ruggs was swearing and sobbing just feet away from the wreckage.

Ruggs ultimately showed up to court on Wednesday in a neck brace and a wheelchair — though he did not enter a plea.

The 22-year-old is due back in court next week for another hearing on the case.

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