Camalot C4 2. Black Diamond Camalot C4 #2 the world’s best-selling, most trusted camalot.. The new, redesigned Camalot C4 has now upped the ante, considering it’s 10% lighter yet just as durable as before. Plus, it features a modern design that improves on the old tried-and-true Camalots. The cam’s lobes are lighter and more sculpted, optimized for strength to weight, while the slings have a visual update for easier differentiation when racking. And speaking of racking, we’re introducing a new innovative trigger keeper on sizes #4, #5, #6, #7, and #8 that keeps the big guys contracted for compact racking and immediately release when you’re ready to place. We’ve also widened the trigger as well for better handling.