Wilson Combat Flat Wire Chrome Silicon AR-15 Buffer Tube Spring, 37-Coil - TR-FWBS37

This Wilson Combat buffer tube spring features a 37-coil flat wire design made from chrome silicon steel, offering superior linear compression that reduces stacking and increases reliability. Compatible with AR-15 platforms chambered in 5.56 NATO, the flat wire construction increases tensile and compressive strength for consistent performance. Direct drop-in installation for standard AR-15 buffer tubes.