The DPMS AR-15 A2 Rear Sight Base Elevation/Index Spring is a purpose-built replacement component for A2-style rear sight bases on AR-15 platform rifles. Designed to restore crisp, repeatable elevation adjustments, this steel spring delivers the precise tension needed for positive indexing of the rear sight elevation drum. Its unfinished appearance reflects its straightforward, functional role within the sight assembly.

This spring is ideal for repairing worn, damaged, or missing parts in an AR-15 A2 rear sight assembly, helping maintain reliable sight settings during regular range use, training, or general rifle maintenance. By supporting consistent engagement of the elevation mechanism, it contributes to dependable performance and predictable adjustments. Backed by DPMS’s long-standing reputation for practical, service-ready AR-15 components, this spring integrates seamlessly into compatible A2 rear sight bases.

• Manufacturer: DPMS
• Model: AR-15 A2 Rear Sight Base Elevation/Index Spring
• Material: Steel
• Finish: Unfinished
• Application: AR-15 A2 Rear Sight Elevation/Index Mechanism
• Quantity: 1