TTI Armory
- TTI Armory is the premier developer and manufacturer of specialty ammunition. Specializing in 50BMG, subsonic and match ammunition for recreational, competition and tactical applications, TTI caters to the professional shooter.
- http://www.ttiarmory.com

The Ferret50
- A 50BMG bolt-action rifle conversion for the AR-15.
- http://ferret50.com

River Valley Ordnance - 50 BMG processed cases for reloading
- These are once-fired US GI cases that have had all the metal work done to them, and are ready to load. A real time saver when you load a lot of 223 or 50 Caliber ammunition. They are even available primed!
- http://www.rvow.com/

LAR Manufacturing 50 caliber rifles
- Grizzly Big Boar 50 Caliber Rifles Manufacturered by LAR Manufacturing.
- http://www.largrizzly.com

50 BMG - Fifty Caliber Schooter's Association (FCSA)
- The Fifty Caliber Shooter's Association, Inc. (FCSA) was established in 1985 by a small group of dedicated people who set for themselves the mission to advance the sporting uses of the .50 BMG cartridge.
- http://www.fcsa.org/

Desert Toys - .50 BMG rifles
- .50 BMG rifles and other gear for the active individual.
- http://www.deserttoys.com