LBE Unlimited BUF001 Commercial Buffer Tube 6 Position AR-15 Black
http://www.tandktactical.com/shop/765857617299-lbe-unlimited-buf001-commercial-buffer-tube-6-position-ar-15-black-24489
http://www.tandktactical.com/web/image/product.template/24489/image_1920?unique=5340929
The Commercial Spec Buffer Tube is compatible with your AR15 and features 6-postions.
