| Model Number | CW1K77XKT |
| Name / Description | Sierro Pro. Break barrel. .177 cal. pellet, single shot. Up to 1000 fps. |
| Dates of Manufacture | 2006-Present |
| Parts Availability | Some parts available through Crosman. |
| Owner's Manual | CW1K77XKT__Sierra_Pro_-_OM.pdf |
| Parts Diagram | CW1K77XKT_EVP___PARTS_LIST.pdf |
CW1K77XKT Owner's Manual & EVP (2006-Present)
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