The Luth-Ar LUTH AR 308 rifle buffer spring is a precision-engineered recoil component designed for dependable performance in .308/7.62 NATO platforms. Built as a dedicated rifle buffer spring, it integrates seamlessly with A2 rifle length receiver extensions, delivering smooth cycling, reliable lockup, and consistent recoil management under a variety of shooting conditions. As a core part of rifle recoil systems, this spring helps maintain proper bolt velocity and overall reliability, supporting accurate follow-up shots and steady functioning during extended sessions on the range or in the field. Crafted to exacting standards by Luth-Ar, this high-quality part is categorized among long gun parts for its robust spring design and dependable tensile properties, ensuring durability even under demanding use. Whether youre upgrading an AR-10 style build or restoring optimal performance to an established setup, selecting the 308-BS-10B spring helps stabilize recoil impulse while preserving chamber pressure balance and cycling consistency. This component pairs with compatible receiver extensions to sustain smooth operation, making it a smart choice for shooters who demand precision recovery and reliable function from their rifle platform.