Elevate your shooting experience with the Strike Industries SI-AR-FWS-C AR Carbine Flat Wire Spring. This high-performance replacement spring is designed for shooters seeking unmatched reliability and consistent operation from their firearms. Constructed from top-tier materials, the SI-AR-FWS-C ensures exceptional durability, providing a marked improvement over traditional round wire springs, resulting in smoother cycling and extended lifespan. Flat wire design minimizes kinking, binding, and snapping. Enhanced resistance to heat and stress for prolonged use. Quick and easy installation for hassle-free upgrade. Optimizes performance for both seasoned shooters and beginners. Choose the Strike Industries SI-AR-FWS-C Flat Wire Spring to enhance your AR carbine's reliability and efficiency.