The Forward Controls Design A5 Castle Nut in Olive Drab Green is a steel replacement castle nut for AR-15 A5-length receiver extension builds. It’s designed to help secure your receiver extension and hold proper alignment through installation.
Key Features
Steel construction for durability
Designed for AR-15 A5-length receiver extension (A5 buffer system)
Olive Drab Green finish for a consistent build color
Upgrade the fit and finish of your A5 AR-15 build with this Forward Controls Design castle nut.
