Knight's Manufacturing Company (KMC) is the division of KAC responsible for producing products for the civilian market.

The United States military, as well as other special forces and police around the world, use KAC RIS/RAS conversions for many popular firearms, including the American M16/M4 rifles and Heckler & Koch MP5 series submachine guns.

[4][5] The mounted accessories can include tactical flashlights, laser targeting units, bipods, and vertical foregrips.

[7] KAC produces mounts for optics and grenade launchers, as well as backup iron sights.

[9] In September 2023, the company was selected to provide the Knight's Stoner 1 variant of its SR-16 rifle to the British Army Special Operations Brigade and to the Royal Marines.