Crosman 16mm Larger ball handle with longer higher power bolt probe and O ring seal with a Crosman 2240/50/60 Longer bolt probe with a Larger 15mm Stainless Steel Polished ball handle, The Longer probe gives maximum flow and power. This is ideal for the all the Crosman 2240/2250/2260 models.

Can also be used with the larger transfer port and seal, but if it is the pistol then make sure you keep it below the limit of 6ft lbs to make sure you don't go over the UK limit of 6ft lbs.

If you have the Ratcatcher 2250 or Rabbit Stopper 2260, then the limit is 12ft lbs.

The standard bolt is a small Brass handle that is just riveted into the Brass Probe which is too short  and the lever can easily break off.