CMMG presents the Detent/Pivot Spring, a meticulously engineered component designed to fit AR-15 receivers. This silver spring is crafted for durability and precision, ensuring seamless integration with your firearm's pivot and takedown pins. Ideal for range time and training, this spring enhances your AR-15's functionality with ease. CMMG is renowned for its innovative firearm solutions, ensuring quality and reliability in every product.