Sprinco USA Standard Power Spring Kit

The Enhanced Power buffer spring is a premium solution for 5.56x45mm carbine users seeking consistent and reliable performance. It is engineered to match the load of a new mil-spec M4 carbine spring, ensuring your firearm operates with the precision and reliability of a factory-fresh setup. This product is ideal for shooters and purists who value the original performance of mil-spec springs, eliminating the need for frequent replacements and offering a long-lasting solution that maintains optima