6 PT Dotted Design Buffer Tube - Our Skeletonized Dot Vented MILSPEC Buffer Tube is sure to turn some heads. Precision machined out of 6061 T-6 aluminum this Type III Hard Coat Anodized Buffer Tube is available in black only. MILSPEC Unique Multi-Dot weight reducing Design 6061 T6 Aluminum 6 Position Anti-Rotation Indexing Tabs Proudly Made in the USA 3.2 oz