The Primary Weapons Systems Mil-Spec Ratchet Lock Castle Nut & End Plate Set, MOD 2, is an essential component designed to enhance the reliability and functionality of your AR-15 platform. Here's a detailed look at its specifications:Manufacturer: Primary Weapons SystemsPricing Unit: EachModel: Castle NutUPC: 811154030764SKU: 4BTRLPB-1FWidth: 3.0 inchesLength: 5.25 inchesHeight: 0.75 inchesWeight: 0.13 lbsThis set features a Mil-Spec Ratchet Lock Castle Nut and End Plate, meticulously engineered to fit both Mil-Spec and Commercial size buffer tubes. The inclusion of the ratchet lock mechanism ensures a secure and tight fit, preventing any unwanted movement or rotation of the castle nut once installed.Crafted to the highest standards of quality and durability, this castle nut and end plate set provides a solid foundation for your buffer tube assembly, enhancing the overall performance and longevity of your AR-15 rifle. Additionally, the set comes packaged in retail packaging, ensuring convenience and protection during transit and storage.Whether you're building a new rifle or upgrading an existing one, the Primary Weapons Systems Mil-Spec Ratchet Lock Castle Nut & End Plate Set offers reliability, precision engineering, and peace of mind for your AR-15 platform.