Anderson Manufacturing Mil-Spec 6 position buffer tube.
Brand - Anderson ManufacturingFinish - Anodized - Matte BlackMaterial -7075-T6 AluminumPlatform - AR-15Style - Mil-Spec CarbineOuter Diameter - 1.15Position - 6Side Folding - NoDimensions - 6.75" LWeight - 3.6 oz