Serbu Firearms is a manufacturer of firearms based in Tampa, Florida.

Founded by mechanical engineer Mark Serbu, the company is best known for producing the BFG-50™, a .50 BMG caliber, single-shot rifle. The rifle is also available in .510 DTC EUROP caliber in most of Europe, as well as California where new .50BMG rifles are banned by law.

The company is currently shipping a semi-automatic .50 BMG rifle called the BFG-50A. Production startup had been slow; prototype photos of the BFG-50A were first shown in 2002, and orders were first taken at the 2008 SHOT show in Las Vegas. Deliveries finally started on 6/17/2011.

Serbu Firearms is also noted for its production of the SUPER-SHORTY, a compact 12- or 20-gauge (on special order) shotgun with front and rear pistol grips which in the United States is regulated as what is called Any Other Weapon under the National Firearms Act. This weapon has proven popular with collectors of NFA firearms and with police departments. They have also appeared in several movies and video games.