Spare Parts · 2026
Airgun Piston in India
Replacement nitro and spring pistons for Camstar and compatible air rifles. Genuine OEM quality, pan-India delivery, and full compatibility info before you buy.
Buy Nitro Piston 45 →Quick answer: An airgun piston is the power core of a spring or gas-piston air rifle. Camstar makes genuine OEM replacement pistons — Nitro Piston 45, Nitro Piston 60, and Nitro Piston 40 — compatible with our Star Matrix and Star ZXi family. Prices ₹2,000–₹6,000. Always have a qualified technician fit a piston — never attempt without a proper spring compressor.
Camstar OEM Airgun Pistons
| Part | Type | Compatible Models | Where to buy |
|---|---|---|---|
| Nitro Piston 40 | Gas Piston | Star Matrix Gold (40-class) | View → |
| Nitro Piston 45 | Gas Piston | Star Matrix RF, Matrix Ace Club | View → |
| Nitro Piston 60 | Gas Piston | Star Hercules RF (high-power) | View → |
Spring Piston vs Nitro Piston
- Spring piston — Metal coil spring driving a piston head. Simple, field-replaceable, lower cost. Downside: more vibration, slower lock time, springs weaken in cold weather.
- Nitro piston (gas piston) — Sealed gas-charged cylinder replaces the spring. Smoother shot cycle, faster lock time (~50% faster), consistent power across temperatures, and longer service life (7,000+ shots typical). Slightly higher cost.
When to Replace Your Piston
Signs your piston is on its way out:
- Velocity has dropped 10%+ from new
- Strong "buzz" or vibration through the stock on every shot
- Smell of burnt oil when firing ("dieseling")
- Groups suddenly opening up at the same distance
- Over 7,000 shots logged in heavy use
How to Fit an Airgun Piston Safely
Do not attempt without a spring compressor. A cocked mainspring stores enough energy to break a finger or launch parts at high velocity. Camstar offers in-house piston fitting at our Lucknow service centre (₹500 labour, plus part cost). Most authorised dealers can also fit one in 30 minutes. The procedure:
- Decompress and dis-assemble the rifle action in a clamped spring compressor
- Remove the worn piston and inspect the cylinder for scoring
- Lubricate the new piston seal with manufacturer-specified moly grease
- Re-install with compressor under controlled pressure, torque mounting screws to spec
- Test-fire 50 rounds before issuing back to the customer
Frequently Asked Questions
What is an airgun piston?
The piston is the core power component of a spring or gas-piston air rifle. When the trigger releases the cocked piston, it slams forward through a sealed chamber, compressing air that drives the pellet down the barrel. Worn or weak pistons cause loss of velocity, inconsistent accuracy, and poor groupings.
What is the difference between a nitro piston and a spring piston?
A spring piston uses a metal coil spring as the power source — simple and field-replaceable but with more vibration. A nitro piston (gas piston) uses sealed nitrogen gas instead — smoother shot cycle, faster lock time, longer service life, and works better in cold weather. Camstar makes both types as OEM replacements.
When should I replace my airgun piston?
Signs your piston needs replacing: noticeable velocity drop, increased recoil or buzz, smell of burnt oil ("diesel" firing), or after 5,000–10,000 shots in heavy use. Camstar pistons typically last 7,000+ shots before requiring replacement.
How much does an airgun piston cost in India?
OEM airgun pistons in India cost between ₹2,000 and ₹6,000 depending on type (spring vs nitro) and model. Camstar Nitro Piston 45 and Nitro Piston 60 are listed at competitive pricing on the Camstar Sports store with shipping pan-India.
Can I install an airgun piston myself?
Spring and gas pistons sit inside a tightly compressed mainspring or gas chamber — DIY installation without a proper spring compressor is dangerous and can damage the rifle or injure you. Camstar offers piston-fitting service at our Lucknow facility, or any authorised dealer can fit one in under 30 minutes.
Free pan-India shipping. Genuine OEM Camstar pistons. Service available at Lucknow HQ.
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