Rangefinders and aiming methods using projectile grouping

Rapid loader device

Ready magazine holder

Rear gun rest

Rear gun sight device

Rear sight for a firearm

Receiver mounted shooting rest

Recoil absorber

Recoil absorbing device and method

Recoil dampening device for gun sight

Recoil suppressing gun support

Recoil suppressing gun support

Reinforced firearm sight support ring

Reloader for loading cartridges into a magazine

Reloader for muzzle loaders

Reloading device for cartridge magazine

Remote controlled apparatus and method for training retrieving d

Remotely-controlled adjustable zoom scope

Removable harmonic tuning system for firearms

Removable light assembly of pre-defined shape for a weapon