Product Description The Geissele Automatics Super 42 Buffer Spring/Buffer Combo is engineered to improve the function and reliability of AR-15 pattern rifles by reducing spring harmonics and increasing consistent return force. Its braided spring design uses three independent strands of wire that flex separately, acting as a harmonic damper and energy absorber to help displace excess energy and decrease the chance of spring failure. Compared to a standard buffer spring, the Super 42 has a reduced tendency to lose length and force over a given round count and helps eliminate the spring reverberation ("twang") felt through the buttstock. This kit includes an H3 buffer assembly and is intended for carbine-length buffer tubes/receiver extensions (not compatible with rifle-length or A5 systems). Product Highlights Three-strand braided wire spring design helps dampen harmonics and absorb energy for improved reliability Approximately 15% stronger average return force than standard buffer springs to aid feeding in adverse conditions Helps reduce spring "twang" reverberation transmitted through the buttstock Designed to better retain length and force over extended round counts versus typical carbine springs Includes Geissele H3 buffer assembly; spring and buffer are intended to be used together as a matched set Specs Brand: Geissele Automatics Product Type: Braided wire buffer spring and buffer combo Buffer Weight: H3 (carbine) Compatibility: AR-15 pattern rifles with carbine-length buffer tubes/receiver extensions; not compatible with rifle-length or A5 buffer tubes/receiver extensions Item Dimensions: 11.300 in (L) x 1.000 in (W) x 1.000 in (H) Item Weight: 0.500 lb MPN: 05-495-H3 UPC: 817953026922 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.