Designed for steady, repeatable performance in varied environments, the KCI USA LOWER PRTS KIT FITS GLOCK 43 emphasizes functional reliability and straightforward operation. The KCI USA lower parts kit offers precision-crafted components for completing or upgrading your pistol build. Designed for smooth functionality and long-lasting durability, this kit contains essential internal parts to ensure a seamless fit and optimal performance. Suitable for gunsmiths, DIY builders, and firearm enthusiasts, it meets strict manufacturing standards, delivering exceptional reliability. Ideal for assembling a new firearm or replacing worn parts, the KCI USA lower parts kit is a dependable choice for superior performance. KCI is known for its commitment to quality and innovation in firearm accessories.