Cobra Tactical offers our six position MilSpec Carbine Buffer Tube made from 7075-T6 Aluminum and hard-coat anodized (MIL-A-8625 Type III Type 3 Hard Coat, Class 2)
Our Cobra Tactical Carbine Buffer Tubes have a drain hole on the rear flat. These also have the threads smoothed/flattened at the transition.
These are made in the USA