User manual for CO₂ -powered gas replicas
Caterina
Last Update 11 days ago
1. Keep your replica clean
After each game:
• Wipe the barrel with a dry cloth.
• If it is heavily soiled, use isopropyl alcohol (IPA).
• Never lubricate the barrel with silicone, as this impairs accuracy.
• Wipe off dust/dirt with a soft cloth.
• Remove sand with a brush.
• If the replica gets wet → dry it and leave it open (bolt pulled back) to allow moisture to evaporate.
2. Lubrication – the most important part CO₂ has higher pressure and wears out seals faster. Lubrication is more important than with green gas.
What to use
• 100% silicone – only for rubber/sealing elements (O-rings, gaskets).
• Teflon/synthetic grease – for moving metal parts (lock rails, mechanisms).
• Do NOT use: mineral oils, automotive oils, lithium greases, spray oil inside the CO₂ system.
Where to lubricate (every 2–4 games):
• O-ring on the magazine knob, where it presses against the capsule.
• Blow-back nozzle O-rings and other seals accessible without disassembling the gearbox/BBU assembly.
• Bolt guides (thin layer!).
• Friction points inside the bolt (gently).
Important:
Do not lubricate the gas channels, capsule chamber, or CO₂ capsule itself—this could contaminate the valve and damage the replica.
3. Magazine service
Inserting the capsule
• Lightly (!) lubricate the rubber O-ring at the capsule pressure point.
• Insert the capsule and tighten securely, but do not use excessive force.
• Fire several times to stabilize the pressure.
After game
• Always remove the CO₂ capsule.
• Do not leave it inside—it damages the seals.
• The steel cartridge always leaves the interior cold and dry → it is worth putting 1 drop of silicone on the O-ring at the entrance, but not inside.
Cleaning
• Wipe the ejector valve with a dry cloth.
• Do not use oil or sprays inside the magazine.
4. Regular technical inspection
Every 500–1,500 shots (depending on the power of the replica):
• Disassemble the bolt and check the return spring.
• Clean and lubricate the blow-back components.
• Check the nozzle (for cracks or looseness).
• Check that the bolt is not rubbing metal against metal at unnatural points.
Every 2–4 months of intensive use:
• Replacement of O-rings — this is the most common and cheapest service.
• Checking the magazine for leaks (sometimes replacing the O-ring under the capsule or at the valve).
5. Using a replica – how not to kill CO₂ too quickly
Avoid this:
• Shooting very quickly with a single cartridge → CO₂ cools the magazine and seals, damaging them more quickly.
• Shooting with an empty capsule (quiet “puff” → replace immediately).
• Exposing the magazine to sunlight (high pressure can damage the seals).
• Dropping – the capsule is very powerful; the CO₂ magazine is more expensive and the valve breaks easily.
How to act correctly:
• Give the magazine a 30–60 second break after a series of shots (to avoid thermal shock).
• Keep magazines in a cool place, not in your pocket (CO₂ in heat → higher pressure).
6. Storage
Replica
• No CO₂ capsule.
• At room temperature.
• Guides lightly lubricated.
• Hop-up chamber and barrel dry.
Magazine
• Completely emptied of gas.
• O-ring on the capsule lubricated from time to time.