Product Description The Geissele Super 42 Buffer Spring/Buffer Combo is engineered to improve function and reliability in AR-15 pattern rifles by reducing spring resonance while delivering a stronger, more consistent return force. Its braided spring design uses three independent strands of wire that flex independently, helping act as a harmonic damper and energy absorber to displace excess energy and reduce the chance of spring failure over extended round counts. Compared to a standard buffer spring, the Super 42 design is less likely to lose length and force and helps eliminate the spring "twang" felt through the buttstock. This combo includes an H2 buffer assembly and is intended for use as a matched set. Product Highlights Braided Super 42 spring uses three independent wire strands to help dampen harmonics and absorb energy Approximately 15% stronger average return force than a standard AR-15 buffer spring for improved cycling Reduced tendency to lose spring length and force over time versus typical carbine springs Helps eliminate the irritating spring reverberation ("twang") transmitted through the buttstock Includes an H2 buffer assembly for a complete Super 42 spring and buffer combo Specs Brand: Geissele Automatics Product Type: Buffer spring and buffer combo System Compatibility: AR-15 pattern rifles Buffer Included: H2 buffer assembly Spring Design: Braided/three-strand wire Compatibility Note: Not compatible with rifle-length or A5 buffer tubes/receiver extensions UPC: 817953026915 Manufacturer Part Number: 05-495-H2 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.