QCB-C Upper Handgard Extension

A quick attach hand guard extension for the QCB-C!! This is great for use with a longer barrel as it not only protects the shooters hand from a hot barrel but also lends a more complete symmetry to the QCB when using a longer barrel. Just insert and twist and the Hand Guard Extension locks into place. It's that simple !!!  All other aspects of the QCB remain the same. This extension uses 3 screws (included) to lock into place for an extremely tight fit.