The Strike Industries Enhanced Castle Nut replaces the standard AR-pattern castle nut with a low-profile design that integrates a quick-detach (QD) sling swivel socket.
- Part Type: Castle Nut with Integrated QD Socket
- Compatible Firearms: AR-15, AR-10, and other AR-pattern rifles with mil-spec buffer tubes
- Material: Steel
- Finish: Black Oxide
- Installation: Requires AR Armorer’s Wrench and Staking Tool
- Includes: Enhanced Castle Nut










