Very high quality choke tube, "private-branded" for Browning by Briley. So much to like, 17-4 stainless (steel shot compatability) with black oxide finish which I really like, pattern accurately. Extended to improve patterns, easy to swap, laser engraved to see at a glance what tube installed in your shotgun barrel. The polished interior keeps plastic buildup to a minimum. Basically designed for Sporting Clays, but I use them for upland hunting purposes.