The Luth-Ar AR TAKEDOWN PIN DETENT W/SPG 10 is a precision AR-15 enhancement designed to streamline takedown operations with a reliable detent and spring system that promotes smooth, repeatable field maintenance. Built by Luth-Ar, this part integrates seamlessly with standard AR-15 receivers, delivering a durable detent solution that resists wear under rigorous use while maintaining consistent retention during assembly and disassembly. The included spring delivers crisp engagement, helping shooters achieve faster takedowns and reassemblies without sacrificing alignment or security. Ideal for sport shooting, hunting, and tactical scenarios where quick, dependable access to the bolt carrier group is essential, this detent kit supports smoother takedown pin travel and reduced perceived slop, contributing to improved accuracy and reduced downtime at the bench or in the field. Crafted to meet the needs of builders and enthusiasts who demand dependable performance from aftermarket components, the LR-15A-10 detent with SPG 10 offers a practical upgrade that enhances fit, feel, and reliability across a wide range of AR-15 configurations.