The Radian ANCHOR + MAGWELL for Glock provides a secure grip and easy reloading. A tapered screw pushes the patented PLANAR-LOK outward, causing barbed teeth to bite into the interior frame walls and lock the ANCHOR in place. This patented design prevents inward wall flex, stopping magazine bind, even with large-capacity magazines. The MAGWELL dovetails into the ANCHOR at the rear, with its tooth biting into the front of the frame. The patented ANGLE-LOK detent pushes the MAGWELL backward into position, completing the system's three-way lock.