Check the listing for details. Empire WGP Autococker Mid-Block Bolt Slide Sled #72668. Condition: New. Listed at 4.95 USD. Constructed of Delrin, the Empire Autococker Mid-Block Bolt Slide Sled can replace Empire, Inception, and many other mid-blocked Autocockers and Sniper paintball guns. It is lightweight and Delrin reduces scratching of the gun body. It has a built-in "slot blocker" to prevent dirt and debris from entering the hammer area and reducing performance. It also comes with a stainless steel set screw that is tightened from the back of the sled to lock the pump arm into place and stop it from rotating. This is a MUST for the best and most reliable performance. If needed the "Slot blocker" can be removed with simple tools to make a shorter sled for guns that don't have the slot extended out the back of the body (like an Inception Bobtail Mid Block body). **Please note** These are extended sleds! A total of 1.5 inches long, which will not properly fit some midblock/half-block Autococker on the market! Your mid-block Autococker must have an open slot all the way through for the sled to properly fully open when cycled.