Lead & Steel 7075-T6 Carbine Buffer Tube Black Aluminum 6-Position

Lead & Steel ARCBT-BLK Carbine Buffer Tube is made from 7075-T6 aluminum. All L&S aluminum components are finished in Type III hard coat anodize for surface hardness, abrasion resistance, and chemical resistance. Type III adds a 0.003 layer of hard aluminum oxide to the substrate's surface. This layer is grown via a proprietary, several-step electrolytic bath that prioritizes surface protection over all else, and the resultant color is dependent upon the saturation of compounds in the various baths, dye concentration, dye mix ratio, aluminum oxide case depth, and starting smoothness of the part. 6-position carbine buffer tube.