1.255 Valve Spring (1) Single w/o Damper

The 1.255 Valve Spring (1) Single without Damper by ELGIN (MPN: RV-9943X) is a precision engine component designed for shooters and armorsmiths who demand reliable firearm performance in various conditions. This single valve spring is tailored for platforms that require a lightweight, high-cycle spring without integral damping, making it suitable for custom builds, competition systems, and duty weapons where spring rate consistency is crucial.

Built to ELGIN's exacting standards, this valve spring operates without a damper, allowing users to fine-tune cycling behavior through precise spring rate selection and buffer system configuration. The absence of damping means the spring delivers direct, unfiltered force transmission, which is critical for maintaining consistent bolt lockup timing and carrier deceleration. At a verified weight of 0.18 lbs, it integrates seamlessly into compatible receiver designs while maintaining the durability required for sustained fire applications.

Law enforcement armorers and mil-spec platform builders benefit most from this undamped spring configuration, particularly those optimizing suppressed or short-barrel upper assemblies where bolt velocity control is essential. Installation requires proper receiver alignment and complementary buffer weight selection to prevent over-travel or premature bolt closure. This component is ideal for those looking to enhance the performance of their custom and duty rifle systems.