Ex-NFL Player Drug Bust -- 5 POUNDS OF MOLLY ... Cops Say

Former NFL wide receiver Reche Caldwell had nearly 5 POUNDS of the drug MDMA in his possession when he was arrested this week ... law enforcement sources tell TMZ Sports

Just to put it into perspective ... the street price for MDMA (or "Molly") can usually run up to $80 per gram on the street ... which is roughly $2,240 per ounce ... which is $35,840 per pound.

So, for you math geniuses out there ... Reche's alleged stash is worth around $179,200.

That's a lot of drugs.