The Rebel Xtreme is a semi-automatic paintball marker designed for recreational and competitive paintball play. It is a .68 caliber blow-back semi-auto marker that can be powered by CO2 or compressed air. The marker boasts a cycle rate of up to 6 balls per second and an effective range of over 150 feet. Its dimensions are 16.5 inches in length and 10.5 inches in height.
Function Description:
The Rebel Xtreme operates as a semi-automatic paintball marker, meaning it fires one paintball with each pull of the trigger after being cocked. The blow-back mechanism uses a portion of the gas to cycle the bolt and re-cock the hammer for the next shot. It is designed for use with .68 caliber paintballs and can utilize either CO2 or compressed air as its propellant. The marker is intended for adults 18 years of age or older, or under direct adult supervision, and adherence to all local, state, and federal laws regarding paintball markers and play is required.
Important Technical Specifications:
- Model: Rebel Xtreme Semi-Auto
- Caliber: .68
- Action: Blow Back Semi-Auto
- Power Source: CO2 or Compressed air
- Cycle Rate: Up to 6 balls per second
- Effective Range: 150+ feet
- Length: 16.5 inches
- Height: 10.5 inches
- Velocity: Adjustable, typically below 280 feet per second (fps) for safe play.
- Internal Pressure (CO2): Approximately 850 psi at 70°F, highly sensitive to temperature changes.
- Internal Pressure (High Pressure Systems): 3000-4500 psi incoming, 600-800 psi outgoing pressure.
Usage Features:
- Safety First: The manual emphasizes critical safety rules, including never pointing the marker at anyone not wearing approved goggles, never looking down the barrel, always disconnecting the air source and dry firing before maintenance, and always leaving the marker uncocked with the power feed plug in the "off" position.
- Field Play: It is recommended to only play at commercial fields with chronographs, referees, and clearly marked safe zones. Chronographing the marker before each game is crucial to ensure safe velocities.
- Quick Setup: The Rebel Xtreme is designed for near out-of-the-box use. Users need to screw in the barrel, insert a barrel plug for safety during setup, push the safety to "safe," attach a feeder elbow and feeder, turn the power feed plug to prevent paintball entry, and screw in the low pressure chamber. After gassing up (always while wearing goggles), ensure the marker is cocked before installing the CO2 tank.
- Velocity Adjustment: Velocity can be adjusted using a thumb screw velocity adjuster located in the rear lower hammer plug. Turning it clockwise increases velocity, while counter-clockwise decreases it.
- Add-ons and Upgrades: The Rebel Xtreme comes with several features that are often considered upgrades on other markers. These include an expansion chamber, bottom-line setup, upgrade grip frame, no-tool disassembly/field strip, upgrade push strut/bolt, polished barrel, low pressure chamber, cutback body, and a metal double finger trigger.
- CO2 Characteristics: The manual provides an in-depth explanation of CO2 behavior, noting its volatility and sensitivity to temperature changes. Rapid firing can cause the tank to "chill" and velocity to drop. Pointing the gun downward with a CO2 tank can lead to liquid CO2 entering the valve, causing velocity spikes.
- High Pressure Systems: For higher performance and consistency, the manual suggests considering high-pressure systems (nitrogen or compressed air). These systems offer a more stable pressure flow, unaffected by temperature changes, leading to more consistent velocity.
Maintenance Features:
- Regular Lubrication: To ensure smooth operation, about four drops of oil should be placed in the CO2 adapter, and the gun dry-fired (after removing the barrel) to spread the oil. The hammer/push strut assembly should also be lubed, but avoid over-oiling. Only use oils specifically manufactured for paintball markers, as petroleum-based oils can damage o-rings.
- Cleaning: Consistency relies on a clean marker, both internally and externally. Special attention should be paid to the power feed/feed tube and the barrel. If a paintball breaks in the barrel, it must be thoroughly cleaned using a pull-through squeegee. For a more complete cleaning, the barrel can be cleaned with warm water or barrel cleaner/treatment. The power feed can also be cleaned with a squeegee after removing the plug.
- Disassembly/Reassembly: For proper cleaning and lubrication, the hammer, push strut, main spring, and upper and lower plugs need to be removed. This process should only be done after de-gassing the gun and ensuring the cocking handle is in the forward position. The manual provides step-by-step instructions for removing the connecting pins, plugs, and internal components, and then reassembling them in reverse order.
- O-ring Inspection and Replacement: Regularly inspect o-rings on the bolt and striker for wear and replace as needed. The "tank" o-ring is a common replacement. An o-ring pick is recommended for removal.
- Troubleshooting:
- Marker not recocking: Check for debris between the upper bolt and breach, re-lubricate o-rings, and ensure the connecting pin is in place.
- Low velocity: Check the velocity adjusting screw, ensure the gun is clean and lubricated, and inspect for a weak striker spring. A spacer can be added between the velocity adjusting screw and spring guide if needed.
- Air leaking out of the barrel: Replace the cup seal (pieces #4 and #5). This involves removing the gas connector, valve spring, and existing cup seal.
- Excessive ball breakage: Check velocity (ensure it's below 290 fps), consider weather conditions (cold makes paintballs brittle, hot expands them), clean the marker, inspect paint quality (flat spots, color fading), and ensure proper bore size.
- Inconsistent velocity: Ensure the marker is clean and lubricated. Account for CO2 temperature sensitivity.
- Double feeding paintballs: Likely due to a lost ball detent; replace it. Also, check if paintballs are too small.
- Double firing on one trigger pull: Can be caused by liquid CO2 in the valve. If not, inspect the trigger sear and assembly for debris. Check the lower bolt o-ring if the problem persists.
- Gun fires but no paint comes out: Ensure the power feed plug is correctly turned. Check for swollen paintballs and avoid using paint picked off the ground.