|Add a rear cocking rod to your Spyder! Some older models of Spyders did not include the popular rear-cocking bolt. This rod replaces the set screw found at the rear of most older Spyder bolts, which will allow you to cock the marker from the rear. Provides an exotic custom look to your Spyder or Spyder-compatible marker! Manufactured by Pro-Line. Nickel plated aluminum. 2.2 inch long body, .688 inch diameter, 3.375 inch overall length. 0.065 lbs .