Enhance the reliability and performance of your AR15 with the Geissele Automatics Super 42 H3 Carbine Buffer Spring Combo. Engineered with a unique braided wire design this spring uses three independent strands to mimic the functionality of the German MG42 Machine Gun acting as a harmonic damper and energy absorber. This innovative construction helps prevent spring failure by allowing each strand to flex independently effectively displacing excess energy. Compared to standard springs the Super 42 maintains its length and force over time providing a more consistent performance. It also eliminates the distracting twang often felt through the buttstock offering a smoother shooting experience. With a 15% stronger average return force than conventional springs it ensures reliable cycling even with dirty rifles or steel-case ammunition. Designed for carbine-length buffer tubes this spring is a robust upgrade for any AR15 enthusiast.