Valve Springs - Dual 1.405

The Valve Springs – Dual 1.405 from CROWER represents a precision-engineered replacement component designed for high-performance and tactical rifle builds where valve actuation reliability directly impacts overall system durability. Dual valve springs are critical in applications requiring sustained cycling under demanding conditions—law enforcement patrol rifles, military service weapons, and competition-grade builds all depend on spring sets that maintain consistent tension across extended firing sequences. This 16-piece set delivers the predictable, repeatable performance that professionals demand when component failure is not an option.

The Valve Springs – Dual 1.405 features a 338 lb/in spring rate engineered to manage valve timing and closure with precision that prevents float and ensures crisp, controlled lockup throughout the rifle's operational envelope. The dual-spring design distributes load more evenly than single-spring alternatives, reducing fatigue and extending component service life under high round counts. At 1.405 inches outer diameter with a 0.950-inch coil bind specification, these springs integrate seamlessly into compatible AR-pattern and modern tactical platforms, providing the controlled resistance necessary for both semi-automatic and fully-cycled applications. CROWER's manufacturing standards ensure tight tolerances that eliminate inconsistency between individual springs in the set.

Armorers, gunsmiths, and tactical operators benefit most from this dual spring set when performing upper receiver maintenance, valve replacement, or spring refresh on duty rifles and training platforms. Installation requires standard gunsmithing tools and competency with AR platform maintenance; springs must be compressed and seated correctly to avoid binding or improper valve actuation. The 16-piece quantity accommodates multiple rifle builds or sustained field replacement protocols, making this set practical for armory inventory and professional maintenance shops. Verify compatibility with your specific barrel extension and bolt carrier assembly before installation.