Northrop Grumman Unveils Dual Feed Bushmaster Cannon To Counter Growing Drone Threats

Executive Summary:

Northrop Grumman has expanded its counter unmanned aircraft systems portfolio with the M230LF Dual Feed Bushmaster Chain Gun and new XM1211 proximity fuzed ammunition. The combination is designed to improve battlefield flexibility by allowing operators to switch instantly between ammunition types while providing a more cost effective solution against rapidly growing drone threats.

Northrop Grumman Expands Counter Drone Capabilities With Dual Feed Bushmaster Cannon

Northrop Grumman has unveiled new capabilities for its M230LF Dual Feed Bushmaster Chain Gun, strengthening its position in the rapidly evolving counter unmanned aircraft systems (C-UAS) market. The announcement highlights a combination of the company’s dual feed cannon and advanced proximity fuzed ammunition designed to defeat both aerial drones and traditional ground targets without requiring operators to reload or change weapons.

The latest development reflects growing demand among Western militaries for affordable and scalable air defense solutions as inexpensive drones increasingly challenge conventional missile based air defense networks.

Designed For Modern Counter Drone Operations

The centerpiece of the new capability is the M230LF Dual Feed Bushmaster Chain Gun, a 30×113 mm medium caliber cannon that introduces two independent ammunition feed paths.

Unlike conventional single feed systems, operators can instantly switch between anti armor ammunition and dedicated counter drone rounds by pressing a button. This eliminates the need for mixed ammunition belts or time consuming reloads during combat.

Northrop Grumman says the recommended combat load includes:

Both ammunition types incorporate self destruct mechanisms if a target is missed, helping reduce collateral damage.

XM1211 Proximity Fuzed Ammunition Improves Kill Probability

The company’s new XM1211 30×113 mm proximity fuzed round addresses one of the most difficult aspects of engaging small drones.

Rather than requiring a direct hit, the projectile contains an integrated proximity sensor that detects when it is close enough to the target before detonating. The resulting fragmentation significantly increases the probability of destroying small, fast moving unmanned aircraft.

Northrop Grumman developed the ammunition with the U.S. Army, specifically to support modern C-UAS missions where drones present small radar and visual signatures that make precision hits challenging.

Why The Upgrade Matters

Drone warfare has fundamentally changed the economics of air defense.

Conflicts in Ukraine and the Middle East have demonstrated that militaries often expend interceptor missiles costing hundreds of thousands or even millions of dollars against drones worth only a few thousand dollars.

Northrop Grumman’s approach seeks to reverse that cost imbalance by allowing medium caliber cannons to destroy drones using significantly cheaper ammunition while reserving high end missile interceptors for cruise missiles, ballistic missiles, or advanced aircraft.

The system is intended to complement, rather than replace, layered air defense architectures.

Operational Flexibility Across Multiple Platforms

The Dual Feed Bushmaster is suitable for integration on numerous platforms, including:

• Remote weapon stations
• Armored fighting vehicles
• Tactical trucks
• Naval patrol craft
• Fixed site air defense systems

Because operators can transition immediately between aerial and ground threats, the system offers improved responsiveness during complex engagements where drones and conventional forces operate simultaneously.

This flexibility is increasingly important as militaries prepare for multi domain operations where unmanned systems, armored vehicles, and infantry may appear together on the battlefield.

Production Expansion Supports Growing Demand

Northrop Grumman says it is investing in manufacturing equipment, production facilities, and tooling to increase output of both the Bushmaster cannon family and advanced ammunition.

The company noted that production capacity is being expanded to shorten lead times and meet rising international demand for counter drone capabilities.

The investment reflects broader defense industry trends as NATO members and Indo Pacific allies accelerate procurement of lower cost air defense systems capable of countering large numbers of small drones.

Strategic Analysis

The significance of this announcement extends beyond a new weapon system.

Modern militaries increasingly recognize that traditional missile based air defense alone cannot economically defeat mass drone attacks. Every conflict over the past several years has reinforced the importance of layered defenses that combine sensors, electronic warfare, missiles, directed energy systems, and gun based interceptors.

Northrop Grumman’s Dual Feed Bushmaster fits squarely within this evolving doctrine. By pairing programmable proximity ammunition with an existing medium caliber cannon, the company offers armed forces a relatively low risk modernization path rather than requiring entirely new weapon platforms.

The dual feed capability also reduces operational complexity. Crews no longer face the tradeoff between loading anti armor ammunition or anti drone rounds before a mission. Instead, they retain both capabilities throughout an engagement, improving battlefield adaptability while reducing reaction time.

For the U.S. Army, NATO allies, and partner nations confronting increasingly sophisticated drone threats, systems that improve the cost exchange ratio may become just as important as high end missile defenses in future force structures.

Technical Overview