Indian Navy’s Indigenous 30mm Naval Gun: India’s maritime security environment is changing rapidly. From drone swarms to fast attack boats used by non-state actors, modern naval threats are increasingly asymmetric, fast, and difficult to detect. In response, the Indian Navy is moving toward a new indigenous 30 mm Naval Surface Gun (NSG) program designed to enhance close-range defence and reduce reliance on foreign weapon systems.
Why the Indian Navy Needs a New Indigenous 30 mm Naval Gun?
Warships rely on layered defence. Long-range missiles handle distant threats, but when an enemy gets close such as drones, helicopters, or small boats naval guns become the last line of defence.
Many Indian ships currently use imported or legacy systems such as the Soviet-origin AK-630 or earlier indigenous variants like the CRN-91. While effective, these systems create supply-chain dependence and technological limitations. The new indigenous gun program aims to replace or supplement such systems with modern, fully Indian-designed solutions under the government’s self-reliance initiative.
Key Features of the Indian Navy’s Indigenous 30mm Naval Gun
The proposed system is not just a traditional gun, it is a smart, networked weapon platform.
According to official requirements issued to industry, the new gun is expected to include:
- Stabilised 30 mm autocannon mounted in a turret
- High rate of fire (around or above 1,200 rounds per minute)
- Advanced electro-optical fire control system (EOFCS)
- Integration with ship combat management systems
- Capability to operate in low visibility or night conditions
- Lightweight design suitable for multiple ship classes
How It Will Counter UAV and Drone Swarm Threats?
Unmanned aerial vehicles (UAVs) now stand as the primary threat which naval forces must face during their military operations. The systems display the following characteristics:
- The devices have a small size which makes them difficult for radar systems to detect.
- The cost of the system remains low when compared to the expense of missiles.
- The system uses multiple units which operate together as a swarm.
- The system enables both surveillance missions and kamikaze-style attacks.
- The system uses electro-optical systems to track drones which have low radar signatures.
- Cost Efficiency: Shooting shells is far cheaper than launching missiles.
- Quick Reaction Time: Guns respond faster than missile systems at close range.
This makes the gun a crucial “inner layer defence” weapon for warships operating in contested environments.
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Integration with Modern Network-Centric Warfare
One of the biggest advantages of the upcoming gun is its compatibility with modern naval combat networks.
Integration with ship Combat Management Systems (CMS) means:
- Target data can come from radar, drones, or other ships
- Automated threat prioritisation becomes possible
- Faster engagement decisions
- Cooperative defence between multiple vessels
This transforms the gun from a standalone weapon into part of a coordinated defensive ecosyste
Platforms That Will Likely Use the Gun
The indigenous 30 mm naval gun is expected to be deployed across multiple ship categories, including:
- Corvettes
- Frigates
- Offshore patrol vessels
- Anti-submarine warfare ships
- Fast attack craft
A lightweight and modular design ensures compatibility with both new ships and upgrades to existing platforms.
Future Outlook
The indigenous 30 mm gun will likely become part of a broader defensive architecture that may include:
- Close-in weapon systems (CIWS)
- Missiles
- Electronic warfare
- Directed energy weapons (future)
Together, these layers will improve survivability against modern threats such as drone swarms and precision-guided weapons.
