28mm x 1mm self grooved aluminium barrel for greater accuracy. Ergonomic nylon handle reinforced with fiberglass. Non-slip handlebar grip. Inox steel trigger mechanism for extra durability. Comfortable chest or hip loader pad design. Bungee cord for increased monofilament cord durability. Single flopper shaft for increased speed. Double notched shaft for “powering up” with 2nd rubber. 16mm rubber loop for extra power. Dyneema bridle.