Cometa Orion Drive and Cocking Sleeve – OR000004
The Cometa Orion Drive Sleeve is an internal replacement component for selected Cometa Orion PCP air rifles. Cometa officially identifies this component as the Casquillo Arrastre, meaning drive or cocking sleeve.
The sleeve forms part of the bolt and cocking mechanism. It works between the bolt shaft and bolt retainer to support the correct transfer of movement through the action.
This component may sometimes be listed as an Orion “hammer pin.” However, it is not the rifle’s hammer. The correct manufacturer description is drive or cocking sleeve.
Key Features
- Factory-style replacement drive sleeve
- Cometa manufacturer part number OR000004
- Official exploded-diagram reference number 4
- Fits within the bolt and cocking mechanism
- Supports correct movement and alignment of the action
- Suitable for replacing a worn, damaged, or missing sleeve
- Precision-machined internal PCP component
Product Specifications
| Specification | Details |
|---|---|
| Brand | Cometa |
| Product Type | Drive or cocking sleeve |
| Supplier Description | Hammer pin |
| Manufacturer Description | Casquillo Arrastre |
| Part Number | OR000004 |
| Diagram Reference | Part 4 |
| Platform | Cometa Orion PCP |
| Position | Bolt and cocking mechanism |
| Quantity | One sleeve |
| Condition | New replacement part |
Compatibility
The official Cometa Orion parts diagram lists OR000004 for the following models:
- Cometa Orion
- Cometa Orion SH
- Cometa Orion SPR
Compatibility with Orion BP, Orion Gold, Advance, later production models, or other Cometa PCP rifles must be confirmed separately.
Check the rifle’s exact model, production generation, and original part number before ordering. This component must not be confused with the Orion hammer, hammer-spring guide, bolt shaft, or bolt retainer.
Related Orion Components
For identification purposes, the official diagram lists:
- Bolt shaft: OR000003
- Drive or cocking sleeve: OR000004
- Bolt retainer: OR100005
- Hammer spring: OR000011
- Hammer: OR000026
- Hammer-spring guide: OR000028
These related components are not included.
Installation Information
The air rifle must be unloaded and completely depressurised according to the manufacturer’s instructions before internal work begins.
Installation should be completed by a qualified PCP airgun technician. Incorrect installation may cause poor cocking operation, misalignment, excessive component wear, or damage to the bolt mechanism.
Do not grind, drill, shorten, or otherwise modify the sleeve.
Package Contents
- One Cometa Orion drive or cocking sleeve
The bolt, hammer, springs, seals, receiver, tools, and air rifle are not included.
Please note: Product images are for illustration and may differ from the supplied component. Availability can change without notice. Special-order products may require approximately 3–10 working days.

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