Solid purchase, literally - Agency Arms Magwell, Glock 19 Gen3

Low profile, great for concealed carry. Noticeable difference in ease of mag changes, especially in low light environments. Solid, unblemished construction, lightweight, helps balance the feel of the pistol. I would recommend this over any polyner magwell. Included all necessary hardware as well as allen keys, easy to install. I would recommend loctiting the screws.
For someone with hands the perfect size for a 19, this added a small lip below my pinky that might bother some, but I've found it actually gives my grip more leverage. Would definitely buy another one.