Lantac RPS Castle Nut And End Plate – Black Nitride (01-UP-RPS)

• Castle nut and end plate assembly for AR receiver extensions
• Black nitride finish enhances wear resistance and corrosion protection
• Precision manufacturing ensures proper fit and secure installation
• Designed for use with AR buffer tube assemblies
• Durable construction supports long term operational reliability
• Provides secure retention of receiver extension components

The LanTac USA LLC RPS Castle Nut and End Plate is a castle nut and end plate set designed for use in AR-15 rifle buffer tube assemblies. This component features a black nitride finish and is used to secure the receiver extension to the lower receiver. The set functions as part of the rear mounting interface for stock and buffer system components. This product is used for assembly and maintenance of AR-15 lower receiver configurations.

The LanTac USA LLC RPS Castle Nut and End Plate includes a nitride surface treatment that provides a consistent black finish with corrosion resistance. In standard configurations, the castle nut and end plate interface with mil-spec receiver extensions and lower receivers. The AR-15 hardware set is categorized under long gun parts and supports secure retention of buffer tube assemblies. This model is intended for range use and routine firearm assembly where proper receiver extension installation is required.