Brands
- Radian Weapons
- Radical Firearms
- Rainier Arms
- Rapid Force
- Real Avid
- Reptilia
- Rise Armament
- Riton Optics
- Rival Arms
- ROG Tactical
- S3F Solutions
- Safariland
- Samson
- San Tan Tactical
- SB Tactical
- Scalarworks
- Seekins Precision
- Sharps Bros.
- Sig Sauer
- Silencerco
- SIONICS Weapon Systems
- SKB Sports
- SLR Rifleworks
- Smith & Wesson