There are many ways to smooth the operation of a suppressed/big bore AR-15 Carbine. One of the most cost effective and quickest upgrades available, is the installation of a KVP H3 tungsten buffer. The KVP H3 utilizes three dense tungsten weights to achieve the 5.4 ounce buffer weight. There are many added benefits once you install a KVP H3 buffer. Benefits include: increased reliability, reduced wear and tear on critical internal parts, reduction in felt recoil, and reduction in bolt bounce. Manufactured to meet the highest quality, KVP Heavy H3 Tungsten Buffers are a great option for the AR-15 platform. NOTE: Due to tungsten weight variation actual buffer weight may vary slightly +/- 5%