Spare Parts · Updated July 2026

12g CO₂ Cartridges in India

Genuine 12-gram CO₂ cylinders for the Star RX Gen 3 and every other 12g-CO₂ airgun. ₹550 for a pack of 5 (₹110 per cylinder). Pan-India road-courier shipping in 3–7 days. No licence, no NOC — 12g CO₂ is completely unregulated in India.

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Quick Answer

All CO₂ air pistols in India — Camstar, Umarex, SIG, Walther, KWC — use the same 12-gram CO₂ cylinder. One cylinder gives 30–60 shots depending on temperature. Camstar sells them at ₹550 per 5-pack (₹110 each), shipped pan-India by road courier. No licence, no age verification required for the cylinders themselves.

What Is a 12g CO₂ Cylinder?

A 12g CO₂ cylinder is a small, single-use metal cartridge holding 12 grams of pressurised carbon dioxide gas. When you screw it into the base of an air pistol, a small pin punctures the seal and releases the gas into the pistol’s reservoir, where it’s used to propel each pellet down the barrel. The 12g size is the global industry standard for airgun CO₂ — every major brand uses it.

You can identify a 12g CO₂ cylinder by its shape (roughly 8 cm long × 1.8 cm wide, tapered neck) and its uniform threadless design. Do not confuse it with the larger 88g / 90g bulk CO₂ cylinders used by some rifles and paintball markers — those don’t fit airgun pistols.

Price in India — What You Should Pay

Source	Pack	Per cylinder	Ships pan-India
Camstar Sports (direct)	5 cylinders / ₹550	₹110	Yes — 3–7 days
Airgun dealer (avg)	5 cylinders / ₹700	₹140	Varies by dealer
Imported (Umarex/Crosman)	5 cylinders / ₹1,000	₹200	Rare — import restrictions
Amazon / marketplace resellers	5 cylinders / ₹800	₹160	Stock inconsistent

Prices approximate India MRP as of July 2026 — market pricing changes. Camstar direct price is guaranteed.

How Many Shots Per Cylinder?

A single 12g CO₂ cylinder gives approximately 30 to 60 shots. The wide range depends on:

Temperature. CO₂ pressure drops sharply in cold. Above 30°C you can expect 50–60 shots; below 15°C, closer to 25–35.
Shooting pace. Rapid semi-auto fire cools the cylinder faster (adiabatic cooling), reducing per-shot pressure and total shots. Slower, deliberate shooting maximises count.
Pistol type. Blowback-slide pistols (like some imports) use extra gas to cycle the slide, giving fewer shots per cylinder than fixed-slide designs like the Star RX Gen 3.
Cylinder freshness. A cylinder stored 3+ years may have slowly leaked and hold less gas than a fresh one.
Velocity setting. Higher muzzle velocity uses more gas per shot. Backing off velocity extends cylinder life.

For a typical 30-minute practice session on a Star RX Gen 3 in summer, plan on 1–2 cylinders. Our 5-pack gives you roughly 150–300 total shots — enough for 3–5 practice sessions.

Which Air Pistols Use 12g CO₂?

12g is the universal airgun-CO₂ standard, so Camstar cylinders fit:

Every Camstar CO₂ airgun — Star RX Gen 3 and future models
Umarex — Glock 17, Beretta 92, Walther PPQ, HK VP9 and all 12g variants
SIG Sauer — P226 ASP, P365, M17
Walther — CP99, PPQ, PPS
Crosman — SNR357, C11, Vigilante
KWC / ASG / Cybergun and every other 12g airgun brand

Not compatible with: bulk 88g / 90g CO₂ cylinders used by some rifles and paintball guns; PCP (pre-charged pneumatic) rifles like the Star PXi which use compressed air from a hand pump, not CO₂.

Safe Storage & Handling

Store in a cool (under 30°C), dry, well-ventilated place away from direct sunlight, heaters, and any open flame.
Do NOT puncture, incinerate, or drop into fire. Pressurised metal cylinders can rupture violently when heated.
Remove the cylinder from your pistol when storing the pistol for more than a week — leaving it pressurised long-term can damage the seals.
Dispose of spent (empty) cylinders in metal recycling — do NOT put in household waste, and never attempt to refill.
Keep out of reach of children.

See our CO₂ pistol maintenance guide for the full routine — seal care, magazine cleaning, and pre-storage checks.

How to Buy Genuine 12g CO₂ in India

The safest route is to buy directly from an airgun manufacturer or authorised dealer. Marketplace listings often mix batches, sometimes ship cylinders that have been on a shelf for 5+ years, and rarely take responsibility for a leaky cartridge. Camstar ships fresh from batch, guarantees the pressure spec, and replaces any defective cylinder in the pack.

Camstar 12g CO₂ — Pack of 5

Genuine, batch-fresh, ships pan-India in 3–7 days

₹550 + ₹150 shipping

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Frequently Asked Questions

What CO₂ cartridges do Camstar air pistols use?

All Camstar CO₂-powered air pistols use the standard 12-gram (12g) CO₂ cylinder — the same universal industry format used by Umarex, SIG Sauer, Walther and most other airgun brands worldwide. This includes the Star RX Gen 3 semi-automatic CO₂ pistol. You do not need a special or proprietary cartridge.

How much do 12g CO₂ cylinders cost in India?

Genuine 12g CO₂ cylinders from Camstar Sports cost ₹550 for a pack of 5 cylinders (₹110 per cylinder). This is significantly cheaper than imported CO₂ (₹150–₹250 per cylinder from imported brands). Shipping is ₹150 per pack pan-India.

How many shots does one 12g CO₂ cylinder give?

One 12g CO₂ cylinder gives approximately 30 to 60 shots in a semi-automatic air pistol, depending on ambient temperature, shooting pace and the specific pistol. In hot Indian summers (above 30°C) and slow shooting, you can hit 50–60 shots per cylinder. In cooler weather (under 20°C) or rapid fire, expect closer to 30–40 shots.

Do CO₂ cylinders need a licence in India?

No. 12g CO₂ cylinders for air guns are not classified as controlled items under Indian law. They can be bought, owned, shipped, and stored without any licence, NOC or paperwork. See our air gun laws guide for full details on the Arms Rules 2016 exemption.

Can I ship CO₂ cylinders anywhere in India?

Yes. Camstar ships 12g CO₂ cylinders pan-India via road courier in 3–7 business days. Air freight is not used because pressurised cylinders are restricted on aircraft. Delivery is available to every state and union territory including Jammu & Kashmir and the North East.

How should I store 12g CO₂ cylinders?

Store CO₂ cylinders in a cool, dry place away from direct sunlight, heaters or open flames. The ideal temperature is under 30°C. Never puncture, incinerate or attempt to refill a spent cylinder — always dispose of used cylinders responsibly. See our CO₂ pistol maintenance guide for full storage tips.

Do CO₂ cylinders expire?

Sealed CO₂ cylinders do not expire in the food-safety sense, but the seal can degrade over 5+ years of storage in poor conditions and slowly leak gas. For best performance use cylinders within 2–3 years of purchase, and always store away from heat. Camstar cylinders ship fresh from batch — you get the full 5-year effective life.

Are Camstar CO₂ cylinders compatible with imported airguns?

Yes. Camstar 12g CO₂ cylinders follow the universal industry standard and fit Umarex, SIG, Walther, Crosman, KWC and every other airgun brand that uses 12g CO₂. If your airgun manual says "12g CO₂", ours will fit.