How 3D Printing is Transforming Defense Readiness Across Military Branches

A New Era of Military Readiness

Global conflicts, shifting alliances, and supply chain disruptions have pushed militaries to rethink how they maintain readiness in unpredictable environments. For the U.S. armed forces, one solution is standing out: 3D printing, also known as additive manufacturing.

By producing strong, lightweight components on demand, military branches can bypass months-long wait times, cut costs dramatically, and ensure that mission-critical systems remain fully operational. From frontline bases to naval vessels at sea, additive manufacturing is no longer experimental—it’s becoming a core defense capability.

The Army: Breathing New Life Into Legacy Equipment

The U.S. Army has been among the earliest adopters of additive manufacturing, using it to solve one of its biggest challenges: sourcing outdated or discontinued parts.

At Fort Irwin, regiments have deployed Continuous Fiber Reinforcement (CFR) technology to print everything from protective gear to vehicle components. A well-documented case involved a hatch plug critical to night operations. Traditionally, replacing it cost nearly $10,000 and required a three-month wait. With 3D printing, the Army reproduced it for under $1,000 in just days, saving over $244,000 across units—while keeping soldiers mission-ready.

What it means for the Army:

• Fast replacement of obsolete or discontinued parts
• Stronger, lighter field equipment
• Major reductions in cost and operational downtime

The Air Force: Lighter Loads, Greater Agility

For airmen, every ounce of weight matters—especially during combat training or rapid deployments. At Cannon Air Force Base, the 27th Special Operations Wing has embraced composite 3D printing to make training gear and field equipment more efficient.

Carbon-fiber reinforced nylon tools are replacing heavy traditional alternatives, reducing fatigue and increasing agility. Airmen are also printing custom night vision goggle (NVG) mounts for less than $5 each, compared to aluminum versions costing hundreds and taking weeks to ship.

What it means for the Air Force:

• Lighter gear for increased endurance
• Rapid production of specialized parts
• Affordable alternatives to high-cost equipment

The Navy: Manufacturing at Sea

For the Navy, the challenge is not just about replacing parts—it’s about doing so thousands of miles away from supply chains. That’s why shipboard 3D printing programs, such as AFLOAT, are game-changers.

Industrial-grade printers installed on vessels allow sailors to produce replacement parts, tools, and fixtures directly at sea. This eliminates the need for costly expedited shipments and ensures that ships can remain operational even in isolated waters.

What it means for the Navy:

• On-demand part production at the point of need
• Reduced downtime during missions
• Greater supply chain independence in remote environments

The Marine Corps: Rugged Parts, Ready Anywhere

The Marine Corps is deploying additive manufacturing directly in the field. Marines trained as Additive Manufacturing Specialists (MOS 6044) are using both composite and metal 3D printers to create parts for vehicles, drones, and weapons systems—sometimes within hours of identifying the need.

By doing so, they’re cutting through the bottlenecks of traditional supply chains and ensuring that equipment failures don’t compromise mission timelines.

What it means for the Marine Corps:

• Mobile, field-deployable manufacturingd
• Durable parts designed for harsh combat conditions
• Faster turnaround for mission-critical components

Beyond the Battlefield: Veterans Affairs and 3D Printing

3D printing in defense isn’t limited to active-duty operations. The Department of Veterans Affairs is leveraging the technology to improve the quality of life for service members after their time in uniform.

At the Central Virginia VA Health Care System, clinicians use additive manufacturing to produce custom prosthetics—rigid models from Onyx and flexible designs from TPU 95A. This enables faster, more affordable, and highly personalized medical devices for wounded veterans.

What it means for the veterans:

• Affordable, patient-specific prosthetic solutions
• Quicker production and delivery times
• Improved rehabilitation and overall quality of life

Why the Military Trusts Markforged

As defense organizations expand their additive manufacturing programs, Markforged has become a trusted partner by offering both the materials and the infrastructure needed to meet strict military requirements.

• Composite & Metal Printing: From lightweight Onyx parts to aerospace-grade stainless steel.
• Continuous Fiber Reinforcement (CFR): Produces parts with strength comparable to aluminum.
• High-Temperature Materials: ULTEM™ 9085 and Vega™ withstand extreme aerospace and naval conditions.
• Secure Workflows: ISO 27001 certification, STIG compliance, and encrypted processes ensure data integrity.
• Scalable Training: Markforged University equips operators across branches for rapid deployment.

The Future of Defense is Additive

3D printing is no longer a “nice-to-have” capability—it’s becoming a cornerstone of military readiness. Whether it’s a soldier in the desert, a sailor in the Pacific, or a veteran at home, additive manufacturing is redefining what it means to be prepared.

For the armed forces, the advantages are clear: faster part production, lighter equipment, lower costs, and a resilient supply chain that works anywhere in the world.