This is a precision replacement spring pin for A2-style match grade rear sight assemblies. The slotted steel pin secures internal components within the rear sight base, ensuring consistent sight adjustment and reliable performance. Made from quality steel with a black finish, this pin is the exact component you need when servicing or rebuilding your rear sight assembly.
A2-style rear sights use multiple internal pins and springs to maintain their zero and adjustment mechanism. This rear base spring pin is the critical component that holds the sight base assembly together. If your sight has lost adjustment tension or the base feels loose, this pin may need replacement. It works with standard A2 match grade configurations across most AR-15 platforms.
Match grade rear sights demand precision parts. This spring pin is manufactured to exact specifications to ensure it seats properly within the sight base assembly and maintains the tension needed for reliable adjustment. The slotted design allows for easy installation and removal when servicing your sight, and the steel construction resists wear from repeated adjustments over time.
Rear sight pins are small but essential. A worn or damaged pin can cause your sight to shift, lose zero, or become difficult to adjust. Keeping a spare on hand means you can quickly service your sight without waiting for parts or downtime. This pin is the exact replacement you need for. Double R Armory A2-style match grade assemblies.
Follow safe handling and manufacturer instructions. Ensure compatibility with all applicable federal, state, and local laws.
Platform: AR-15
Compatibility: A2-Style Match Grade Rear Sight Assemblies
Component: Rear Base Spring Pin
Pin Type: Slotted Spring / Roll Pin
Material: Steel
Finish: Black
Function: Retains and secures components within the A2 rear sight base assembly
Application: Replacement or spare rear sight component
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