From MP.net:

Army troops seized 400 pistols and rifles, 500,000 bullets, 165 grenades, several grenade launchers, six heavy machine guns and an anti-tank rocket launcher.

Assistant Attorney General Marisela Morales said the arsenal “is the largest in the history of Mexico.”

Click to expand.

Hollywood bling. Note the two revolving multi-shot grenade launchers.

That is some serious firepower!

More photos at MP.net