Product Description The Ruger AR Stock Kit with M4 Stock is a practical replacement or build kit for AR-style rifle setups, combining essential rear assembly components in one package. This kit includes an M4-style buttstock along with a recoil spring, castle nut, end plate, and carbine buffer, helping streamline installation and maintenance. Built by Ruger, a respected American firearms manufacturer known for durable and dependable products, this stock kit is a solid choice for shooters looking for reliable factory components. Product Highlights Includes an M4-style buttstock for AR platform stock replacement or build projects Comes with key components including recoil spring, castle nut, end plate, and carbine buffer Factory Ruger stock kit designed for dependable fit, function, and long-term use Convenient all-in-one package helps simplify AR stock assembly and parts sourcing Ideal for firearm maintenance, repair, or upgrading worn rear stock assembly components Specs Brand: Ruger Manufacturer Part Number: 91007 UPC: 736676910076 Product Type: AR Stock Kit with M4 Stock Included Components: Recoil Spring, Castle Nut, End Plate, Buttstock, Carbine Buffer Model: AR Stock Kit Approximate Dimensions: 15.4 in L x 8.1 in W x 1.7 in H Approximate Weight: 1.195 lb Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.