Je Machine Tech AR-15 Buffer Tube Features The Je Machine Tech buffer tube is machined from Aluminum and given a Type 3 hard anodize finish in Black providing durability against wear during repeated stock adjustments on an AR-15. Built to mil-spec dimensions with a 1 inch inner diameter and 1.145 inch outer diameter it maintains compatibility with standard mil-spec stocks and buffer components. The tube offers 6 adjustment positions letting shooters dial in length of pull to match their build and shooting stance. Three drain holes are machined into the tube to help moisture and debris escape rather than collect inside during field use. At 7.15 inches long and roughly 3.6 ounces the tube adds minimal weight to a completed rifle while maintaining the strength needed for reliable buffer spring compression. The matte black finish blends cleanly with most AR-15 builds without calling attention to itself. Made in the USA this tube gives builders confidence in both fit and finish quality. For anyone replacing a damaged or non-mil-spec buffer tube this Je Machine Tech option is a solid straightforward upgrade. Je Machine Tech AR-15 Buffer Tube Specifications Manufacturer: Je Machine Tech Type: Buffer Tube Color: Black Material: Aluminum Finish: Type 3 Hard Anodize Length: 7.15 Diameter: 1 Inner / 1.145 Outer Weight: 3.60 oz Positions: 6 Position Compatible Hosts: AR-15 Available At: GrabAGun