Firepow'r Kit 760 and 66 A must-have accessory for the 760 Pumpmaster, 66 Powermaster, and the Crosman® 782 Black Diamond™. Stay in the action longer. Load all four, 5-shot, .177 pellet clips ahead of time, for fast repeating action in the field. ** Fits Models 760 and 66 manufacured since August 2001. To determine if your gun was manufactured after2001, simply look at the serial number. The first three or four digits of your serial number indicate when the gun was manufactured. As an example, if your gun was made in June of 1999, then the first three digits would be 699. If it was manufactured in December of 1999 the first four digits would be 1299 or it might start with a letter, D99. Model Number: 0401