VBlueVwrote a review of Mad Rock Hulk HMS Screw Gate Carabiner on June 24, 2018
Familiarity: I've used it several times
Pirana Descenders have a very short list of carabiners that will fit. This Mad Rock Hulk HMS fits precisely into the hole! Plus, the spine is stamped 30 kN!
The rich Black Colorway makes me feel like I need to wear a Tuxedo while rappelling. Solid 'biner!