Experience the durability and reliability of Battle Arms Development Mil-Spec buffers your ultimate choice for enhancing or upgrading your AR15/M16 build. Designed for easy integration these buffers fit seamlessly into any collapsible buffer tube system ensuring optimal performance. Engineered with precision our carbine weight 3oz buffers are ideal for new builds or as direct replacements for worn-out components. Embrace quality and performance with Battle Arms Development setting a new standard in firearm excellence.