Pistol Caliber Receivers are the perfect starting point for those looking to build or modify an AR-style firearm chambered in pistol calibers, combining the familiarity of the AR platform with the affordability and convenience of pistol ammunition. KAK Industry's selection caters to a variety of preferences, offering a solid foundation for building a 9mm, .40 S&W, or .45 ACP AR. These receivers are designed to accommodate standard and custom setups, ensuring compatibility with a wide range of AR-15 Parts. Ideal for both competitive shooting and home defense, pistol caliber receivers provide a unique blend of versatility and performance. Explore our Muzzle Devices to further customize your build and enhance recoil control, or check out our AR-15 Handguards for added stability and style. Start your next project with our Pistol Caliber Receivers and experience the best of both worlds in your AR-style build.