Matt LeBlanc has been MIA, at least in public, for months ... but he was seen out and about Friday in L.A.
The 57-year-old Friends star looked chill in a t-shirt and jeans as he hit up a car showroom in the San Fernando Valley.
Matt hasn't been seen publicly since December ... 2 months after the death of Matthew Perry.
Five people have been indicted in connection with Perry's death, including 2 doctors.
TMZ Studios has a new documentary -- "Matthew Perry and the Secret Celebrity Drug Ring" -- which will air on Fox September 16th at 9 PM ET. It's a shocking look at how celebs and others with means can score drugs from doctors, pharmacies, enablers and even rehab centers.