MSR Retainer pin for spring for plunger pin for UR/SFK type front sight block (Krinkov

Ensure reliable operation and secure retention for your Krinkov-style front sight block with the MSR Retainer Pin for the plunger spring. Designed specifically for UR/SFK type front sight blocks, this precision-engineered component is an essential replacement part for AK platform firearms that demand consistent muzzle device security and smooth plunger function.Key Features Precision fit for UR/SFK Krinkov front sight blocks - engineered to match OEM specifications for seamless integration High-strength construction - durable metal pin resists wear, deformation, and loss during maintenance or heavy use Secure spring retention - holds the plunger spring firmly in place to prevent plunger pin migration or ejection Compact dimensions - measures 0.5 inches in length for exact compatibility without excess bulkTechnical Specifications Length: 0.5 inches Width: 0.12 inches Height: 0.12 inches Weight: 0.02 (units consistent with product data) Application: UR/SFK type front sight block plunger spring retainer (Krinkov configuration)Why Choose This ProductFront sight block maintenance on Krinkov variants often involves tiny components that are easily lost or damaged. This retainer pin solves that common pain point by providing a direct, reliable replacement that restores full functionality to the plunger assembly. Proper retention ensures your muzzle device stays securely attached, supporting consistent accuracy and safe operation. Whether you're rebuilding, repairing, or upgrading your AK, this part delivers OEM-level performance in a critical area.Upgrade your Krinkov front sight block assembly with confidence using this MSR retainer pin for dependable, long-lasting results.