Fortis Lightweight Enhanced Castle Nut End Plate Kit for AR-15 – K2 System, Black Gray (LE-BLK-K2-GRY)

• Castle nut and end plate system designed for AR platform buffer assemblies
• Lightweight design weighs approximately 0.55 ounces reducing firearm weight impact
• 7075 T6 aircraft grade aluminum construction provides strength and durability performance
• Quick detach socket supports 360 degree rotational sling mounting interface capability
• K2 locking mechanism prevents loosening without staking or additional hardware required
• Black and gray anodized finish enhances corrosion resistance and customization options

The Fortis Manufacturing, Inc. Light Weight K2 Castle Nut and End Plate is a castle nut and end plate kit designed for securing an AR-15 buffer tube assembly. This castle nut and end plate kit has a lightweight profile at approximately 0.55 oz and includes a 360-degree quick detach socket for sling mounting.

The Fortis Manufacturing, Inc. Light Weight K2 Castle Nut and End Plate is constructed from 7075 T6 aircraft grade aluminum with an anodized black and gray finish. The K2 locking system integrates a precision interface between the castle nut and end plate without the use of set screws or ratcheting systems. This product is used for AR-15 rifle builds requiring a stable receiver extension retention method. In typical setups, the integrated QD socket allows rotational sling attachment across the full circumference. The Fortis Manufacturing, Inc. Light Weight K2 Castle Nut and End Plate provides a non-staking installation approach while maintaining consistent alignment and material durability.