Crosman Benjamin Marauder BP1763/BP1764 .177 & BP2263/BP2264 .22 Air Rifle Full 2X Color Coded Captain O-Ring Rebuild Kit Includes o-rings to rebuild your Crosman Benjamin Marauder Air Rifle two complete times O-Rings are color coded by size to make replacement easier than ever Includes: 397-062 (x2), 1763-058 (x2), 1761A023 (x4), 2563-061 (x2), JTX-080 (x4), 397-036 (x4), 1763-026 (x8) Made of the same material as black OEM o-rings Manufactured and warrantied by Captain O-Ring LLC