Product DescriptionUpgrade your AR-platform receiver extension hardware with the Strike Industries Enhanced Castle Nut and Extended End Plate with Quick Detach (QD) sling mount. Designed to stand out from basic parts-kit components, this enhanced set features a lengthened steel castle nut that better supports the receiver extension&';s threaded area and pairs cleanly with the extended end plate for improved fit and aesthetics. The extended end plate integrates a rearward-positioned QD sling swivel mount to help keep the sling attachment away from the web of the primary hand, supporting smoother weapon manipulation in tight spaces and under stress.Product Highlights Enhanced AR castle nut and extended end plate set for upgraded function and appearance Lengthened steel castle nut supports more receiver extension threads for a cleaner, more robust interface Integrated Quick Detach (QD) sling swivel mount for fast sling attachment Rearward QD placement helps reduce hand pinch during manipulations with a sling installed Durable black finish to match common AR builds Specs Brand: Strike Manufacturer Part Number: ARECN&EEPBK UPC: 708747545548 Product Type: Castle Nut / End Plate Compatibility: AR platform Material: Steel Finish/Color: Black 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.