Anodized Blue Mil-Spec 6-Position Buffer Tube kit Product Features: 6 position Stock Receiver Extension Tube Mil-Spec Diameter Blue Hard Coat Anodized 7075 T6 Grade Aluminum Ability to adjust to 6 position Drainage holes design for precise mechanism Anodized OD Green Mil-Spec 6-Position Buffer Tube kit Product Features: 6 position Stock Receiver Extension Tube Mil-Spec Diameter OD Green Hard Coat Anodized 7075 T6 Grade Aluminum Ability to adjust to 6 position Drainage holes design for precise mechanism AR15 Pistol Length Mil-Spec Fluted Buffer Tube USA Made AR15 Pistol Receiver End Extension Tube Material: Impact Extruded 6061 T6 Grade Aluminum Surface Treatment: Per MIL-A-8625 F, Type III, Class 2 Anodize Wide, Fluted Surface for clearing debris that may interfere with performance Made in the USA Colors: Black or Tan Weight .30lb Resource URL: https://mcsgearup.com/buffer-tubes/