The H&K ratchet helical spring is a precision-engineered component designed specifically for compatibility with the H&K 91 model. This helical spring is crafted to meet the rigorous standards of performance and durability required by H&K firearms. It plays a critical role in the ratchet mechanism, ensuring reliable operation and consistent performance under various conditions. Manufactured from high-grade materials, the H&K ratchet helical spring offers exceptional resistance to wear and deformation, thereby extending the service life of the firearm. Its design ensures optimal tension and compression characteristics, contributing to the smooth functioning of the ratchet system. This component is essential for maintaining the operational integrity of the H&K 91, making it a vital part for users seeking to uphold the reliability and precision of their firearm. Installation should be performed by a qualified technician to ensure proper fit and function within the firearm's assembly.

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It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

It is the customer’s responsibility for understanding state laws regarding magazine capacities. Palmetto State Armory abides by all state regulations regarding the sale of high capacity magazines. We DO NOT ship high-capacity magazines with firearms to certain states. We WILL NOT replace high capacity magazines with state compliant magazines. We DO NOT offer refunds in place of the magazines. Please see our terms and conditions for a list or restricted states.