R
- Rangemaster (Remington Model 40X rifle)
- readily restorable
- recoil buffer
- recoil reducer
- recoil suppressor
- Registered Magnum (Smith & Wesson revolver)
- regulation
- Remington GameMaster (Model 760 rifle)
- Remington Model 11-48 (shotgun)
- Remington Model 12 (rifle)
- Remington Model 40X Rangemaster (rifle)
- Remington Model 40XB (rifle)
- Remington Model 40XR (rifle)
- Remington Model 121 Fieldmaster (rifle)
- Remington Model 510-X (rifle)
- Remington Model 511-X (rifle)
- Remington Model 512-X (rifle)
- Remington Model 513 (rifle)
- Remington Model 550 (rifle)
- Remington Model 550-1 (rifle)
- Remington Model 550-1A (rifle)
- Remington Model 550-2G Gallery Special (rifle)
- Remington Model 550-A (rifle)
- Remington Model 700 (rifle)
- Remington Model 740 (rifle)
- Remington Model 742 (rifle)
- Remington Model 760 GameMaster (rifle)
- Remington Model 3200 (shotgun)
- Remington Mohawk 48 (shotgun)
- Remington Sportsman 48 (shotgun)
- rifle
- rifling broach
- ring bulge
- ringed barrel
- Rivanna Rifle and Pistol Club
- Roger Bacon
- RRPC
- Ruger 10/22 (rifle)
- Ruger Mark II
- Ruger Mark III
- Ruger Mark IV
- runover
- rust blue