Cometa Orion BP Long Air Cylinder – OR500015_L
The Cometa OR500015_L is a replacement compressed-air cylinder for compatible full-size Cometa Orion BP bullpup PCP air rifles.
The cylinder stores the high-pressure air used to operate the rifle. It forms a central part of the Orion BP pneumatic system and must remain free from corrosion, impact damage and unauthorised modification.
The “L” suffix identifies the long-version cylinder. It should not be confused with the shorter reservoir fitted to the Orion BP Mini.
Key Features
- Replacement air cylinder for the Cometa Orion BP
- Long/full-size cylinder configuration
- Original Cometa reference OR500015_L
- Designed for high-pressure PCP operation
- Forms the rifle’s compressed-air reservoir
- Suitable for replacing a damaged or unserviceable cylinder
- Model-specific pressure component
- Intended for professional installation
Product Specifications
| Specification | Details |
|---|---|
| Brand | Cometa |
| Product type | PCP compressed-air cylinder |
| Part number | OR500015_L |
| Configuration | Long/full-size version |
| Platform | Cometa Orion BP |
| Rifle type | Bullpup PCP air rifle |
| Function | Stores compressed air for rifle operation |
| Full-size Orion BP reservoir volume | 300cc |
| Published Orion BP maximum pressure | 200 bar / 3,000 psi |
| Calibre-specific | No |
| Condition | New replacement part |
Compatibility
Designed primarily for the full-size:
- Cometa Orion BP
- Applicable Orion BP variants using the long cylinder
This cylinder should not be assumed to fit:
- Cometa Orion BP Mini
- Conventional-stock Cometa Orion
- Cometa Orion SH
- Cometa Orion SPR
- Orion versions using a different cylinder length or pressure specification
Confirm part number OR500015_L, cylinder length, threads and pressure markings before installation.
Long Cylinder Identification
The full-size Cometa Orion BP is published with a 300cc reservoir. The Orion BP Mini uses a smaller 225cc reservoir.
The OR500015_L reference is listed as the long bullpup cylinder. Exact capacity and permitted working pressure must always be confirmed from the markings on the supplied cylinder.
Never exceed the maximum pressure marked on the cylinder, even if another Orion model has a different published specification.
Replacement May Be Required When
- The original cylinder is dented or damaged
- Corrosion or deep surface pitting is present
- The cylinder threads are damaged
- The reservoir has failed a professional inspection
- The cylinder has exceeded an applicable service limit
- The rifle is undergoing a factory-standard rebuild
A leaking rifle does not always require a new cylinder. Leaks are often caused by O-rings, the filling valve, valve seat, pressure gauge adaptor or regulator.
Installation and Safety
This is a high-pressure component. The rifle must be unloaded and completely depressurised before the cylinder is removed.
Installation, inspection and pressure testing must be completed by a qualified PCP airgun technician.
Never:
- Drill, weld, heat or machine the cylinder
- Repair dents or corrosion by grinding
- Alter the cylinder threads
- Exceed the marked working pressure
- Use oxygen, carbon dioxide or another unsuitable gas
- Fit a damaged valve or sealing component
Only clean, dry compressed air from suitable PCP filling equipment should be used.
Package Contents
- One Cometa Orion BP long air cylinder – OR500015_L
Unless specifically stated by the supplier, the filling valve, firing valve, pressure gauge, regulator, seals, fittings and installation tools are not included.
Important Notice
The product image may be representative. Confirm the cylinder’s length, fittings, pressure rating and part number before installation.
High-pressure cylinders may be subject to transport restrictions. This may be a special-order item with an estimated supplier processing period of 3–10 working days, subject to availability.

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As a result of our extensive experience in manufacturing airguns and the constant effort to innovate our products, we are able to offer high quality airguns. All components of the airguns are manufactured in Spain. In particular, the main parts of the airguns - the barrel, stock and tube - are manufactured and controlled by Cometa itself. All the airguns are individually tested and calibrated; the speed is controlled under the laws of each country.
 
 
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