There are many ways to smooth the operation of a AR-15 Carbine. One of the most cost effective and quickest upgrades available, is the installation of a KVP Stainless Steel Buffer. There are many added benefits once you install a KVP buffer. Benefits include: increased reliability, reduced wear and tear of critical internal parts, reduction in felt recoil, and reduction in bolt bounce. FeaturesStainless Steel Buffer BodyIncreases weapon reliabilityReduces wear of critical internal partsReduces felt recoilNegates bolt bounce