The engine behind Ravin crossbows. This revolutionary technology has several industry changing advantages that all work together to create the most accurate crossbow ever designed. HeliCoil technology coils cables away from both the top and bottom of the cams in helical grooves, keeping the cams perfectly balanced. This allows the cams to rotate an incredible 340 degrees, while both cams remain perfectly level when drawing and shooting the crossbow. This revolutionary design creates an incredibly compact crossbow packed full of innovative features that produce rifle-like downrange accuracy.