BREAKING NEWS!!!! Soulja Boy ARRESTED . . . Charged With DEALING DRUGS!!!!! (Cops Catch Him With GUNS . . . Drugs . . . And STACKS OF CASH)

Rapper Soulja Boy has been SPIRALING DOWNWARD ever since he was caught SNIFFING POWDER by Katt Stacks.

Not he faces up to 20 years in prison. Here's what TMZ is reporting:

Soulja was riding in an Escalade with 4 other men, which was originally pulled over for a traffic violation.

We're told ... during the stop, cops found a "substantial amount" of marijuana and cash inside the vehicle." Soulja and the 4 other men were all arrested. Soulja is still being held in Carrol County Jail.

Law enforcement sources tell us officers also found guns inside the car -- though it's unclear if any of the men had the proper licenses to be in possession of the firearms . . . there was roughly $70,000 in cash and drugs in the car.

And there's MORE:

All 5 men were arrested on charges of possession of marijuana, possession with intent to distribute, and possession of a firearm during the commission of a crime.

Good luck bruh . . .