Mil-spec buffer - UTG Pro Hard Coat Recoil Buffer for AR15 Carbine

This is a standard mil-spec buffer, with removable weights in case you wish to upgrade to tungsten weights later for a heavier buffer. It's nothing flashy, and is typical of the buffers that come with receiver extension tube kits. This part would be better at about $5 cheaper, though. It serves it's function, and there isn't much else to say about it.