Elevate your AR15 build with the CMMG 55AFF75 PART KIT, designed for precision and functionality. This parts kit includes essential lower pins and springs that meet or exceed military specifications. Constructed for both performance and reliability, these components are ideal for new builds or repair projects. Ensure your AR15 operates seamlessly with the highest quality parts available. Lower Pins and Springs Mil-Spec For Builds or Repairs Maximize your firearm's potential with this durable and dependable parts kit.