The M5 .308 Enhanced Carbine Buffer Kit is the perfect complement to standard .308 rifle builds. This kit highlights our Enhanced Carbine Buffer Tube that delivers features that increase the reliability, security, and simplicity of your build.Specifications for Aero Precision M5 .308 Enhanced Carbine Buffer Kit:Manufacturer:Aero PrecisionFabric/Material:7075-T6 AluminumGun Make:AR PlatformGun Model:M5Condition:NewWeight:10.4 ozFeatures of Aero Precision M5 .308 Enhanced Carbine Buffer KitFully supports and guides the bolt carrier group into the buffer tube after a round is fired, preventing carrier tilt and unnecessary wear on key components.The Carrier Support Extensions also extend on either side of the buffer retaining pin, securing the pin in place while simultaneously preventing the buffer tube from backing out under recoil.Each position guide features a drainage hole that removes water from the system in marine environments.During routine operation, smoother cycling is achieved by allowing additional air to escape during the compression cycle of the rifle.Allows for effortless installation of traditional carbine stocks.Aero Precision have removed the need for messing around with screwdrivers to get your furniture over the end of the buffer tube.Simply hold down the adjustment piece and push your stock onto the Enhanced Buffer Tube.Traditional buffer tubes feature extended unused threads that can cause your stock to become trapped when fully collapsed.While some turn these threads down, correctly machined the threads to the proper depth, providing a much cleaner look.Package Contents:Aero Precision M5 .308 Enhanced Carbine Buffer KitEnhanced Carbine Buffer Tube 6-Position.308 Carbine Buffer.308 Carbine Buffer SpringEndplateLock NutAero Precision APRH101463C: M5 .308 Enhanced Carbine Buffer Kit, OD GreenAero Precision APRH101461C: M5 .308 Enhanced Carbine Buffer Kit, Kodiak BrownAero Precision APRH101248: M5 .308 Enhanced Carbine Buffer Kit, Black