Barrett rifles are a series of large-caliber, long-range sniper rifles manufactured by Barrett Firearms Manufacturing. They are most famous for their .50 BMG (12.7×99mm NATO) chambered rifles, such as the M82 and M107, which are used by military forces worldwide for anti-materiel and long-range precision shooting.
And all of a sudden, you start finding people with 50 caliber Barrett rifles with scopes on them.
""The speaker explicitly mentions 'Barrett rifles' in the context of high-powered firearms appearing in Mexico. This is a specific, branded type of rifle."