Knight's Armament Silent Revolving Rifle
This video showcases the rare Knight's Armament Silent Revolving Rifle, a custom firearm developed in the early 1990s for an unnamed agency. Based on a Ruger Redhawk revolver, the rifle was designed to be effectively silent, brass-free, and accurate, capable of 1.5" groups at 100 yards. This was achieved through a unique sabot ammunition with an o-ring seal to close the cylinder gap. Approximately 100 units were produced, with variants using .30-caliber and 7mm bores. The project was internally known as "r-squared."











