V Seven 7075 Carbine Buffer Tube Hardcoat Anodized. 25 in Condition: New Features: Constructed From 7075 T6 Aluminum Cold Rolled Forged For Added Strength 6 Position Mil-Spec Diameter Type Iii Hardcoat Anodized Weighs 3.4 Oz Package Contents: V Seven 7075 Carbine Buffer Tube What firearm models does the manufacturer say V Seven 7075 Carbine Buffer Tube is compatible with? The manufacturer suggests that V Seven 7075 Carbine Buffer Tube is compatible with AR-15V Seven CBT-AL: 7075 Carbine Buffer Tube Hardcoat Anodized