KAK Industry was founded and incorporated in 2011 by Kurt Kosman with a mission to fill a critical gap in the firearms market by delivering high-quality, American-made components at prices that balance affordability with long-term sustainability. Built on a foundation of precision engineering, innovation and a commitment to excellence, KAK Industry has grown into a trusted name among firearm enthusiasts, gunsmiths and manufacturers. Every product is crafted with meticulous attention to detail, ensuring durability, reliability and peak performance. Driven by a passion for craftsmanship and a dedication to supporting the shooting community, KAK Industry continues to set the standard for superior firearm components designed to perform when it matters most. Heat-treated for strength and durability, providing enhanced reliability during heavy use Phosphate-coated for corrosion-resistance, ensuring protection against rust and wear Milled flats for easy installation, simplifying setup for users Fully precision-machined in house at KAK Industry, ensuring high-quality, accurate manufacturing for optimal firearm performance Crush washer not included, allowing users to purchase separately or use existing components for optimal barrel installation