Defense & Firearms Spring Manufacturing

In the defense and firearms industries, reliability isn’t just a preference—it’s a mission-critical requirement. Components must perform flawlessly under pressure, in extreme environments, and over long service lives.

At Plymouth Spring, we deliver expertly engineered defense springs, firearms springs, wire forms, and precision stampings to meet the most demanding applications. Our products are designed to ensure reliability, safety, and optimal performance for all types of defense applications.

About Our Defense & Firearms Solutions

Plymouth Spring serves leading defense and firearms manufacturers, delivering high-precision components for critical systems. Our components support a wide range of tactical and combat-ready applications:

• Fire Control Systems – Trigger and firing mechanism springs
• Firearm Safety Mechanisms – Consistent, reliable engagement
• Optics Systems – Secure and stable positioning components
• Trigger Assemblies – Smooth, responsive activation springs
• Recoil Systems – High-strength springs to absorb and manage recoil
• Bolt Carrier & Buffer Assemblies – Springs and pins for reliable cycling
• Magazines & Feeding Systems – Springs for consistent cartridge pressure
• Weapon Mounting Systems – Secure, vibration-resistant components
• Tactical Lighting & Lasers – Miniature springs and stampings for contact and assembly
• Suppressor Mechanisms – Heat-resistant components for indexing systems
• Weaponized Drones & Robotics – Lightweight, precise parts for actuation and control

Our Product Range for Defense Applications

We manufacture a full suite of precision-engineered components designed specifically for tactical, combat, and firearms environments:

Compression Springs

• Trigger Springs – Consistent pull and return force
• Magazine Springs – Reliable cartridge feed under cycling
• Recoil Springs – Absorbs impact, stabilizes operation
• Electrical Contact Springs – Maintains continuity in optics and fire control systems

Torsion Springs

• Controlled torque for safety locks and trigger mechanisms
• Custom coiling for directional force applications

Retaining Pins

• Secure and maintain component placement

Stampings

• Custom designs for tactical equipment
• Precision-formed parts for complex applications

Flat & Leaf Springs

• Common in fire control units and electrical systems
• Spring Clips & Clamps – Hold components in place under stress

Wave & Belleville Washers

• Compact force solutions for preload and vibration damping

Assemblies & Subassemblies

• Combine springs, wire forms, and stampings into turnkey solutions
• Ideal for custom weapon systems or modular platforms

Finishing Options: Black oxide, passivation, and mil-spec coatings available.

 Design and Performance Considerations

Our engineering team works directly with defense clients to optimize part functionality based on specific needs:

• Material Selection – Balanced for strength, fatigue life, and environment
• Tolerances – Precision manufacturing for predictable performance
• Environmental Resistance – Heat, corrosion, and vibration-ready
• Mounting & Integration – Custom designs for ease of assembly

Materials We Work With

Our components are crafted from military-grade metals designed for longevity and consistency in extreme conditions:

Spring Materials

• Stainless Steel (302, 304, 316) – Corrosion-resistant, rugged
• Music Wire – High-strength, precision-formable
• Chrome Silicon – Excellent for recoil and high-cycle durability
• Phosphor Bronze – Conductive and corrosion-resistant
• Inconel® – Performs in extreme heat and corrosive environments
• Beryllium Copper – Non-magnetic, non-sparking for sensitive systems

Stamping & Four-Slide Materials

• Stainless Steel Strip – Corrosion-resistant, formable
• Brass & Copper Alloys – High conductivity for electronic integration
• High Carbon Spring Steels – Durable with high tensile strength

Our material selection expertise ensures every component is tailored for:

• Operational environment
• Load and fatigue specifications
• Mil-spec or DFARS compliance
• Coating and corrosion resistance

Why Choose Plymouth Spring?

With over 65 years of precision spring manufacturing, we deliver high-performance solutions with an unwavering commitment to quality and compliance.

• Tight Tolerances – Guaranteed accuracy for mission-critical performance
• Collaborative Engineering – From prototype to production
• Made in the USA – Secure sourcing and fast lead times
• ITAR & ISO-Certified – Dependable quality systems

Certifications & Compliance

• ITAR Certified – Compliant with U.S. export regulations for defense articles
• ISO 9001:2015 Certified – Rigorous quality management
• ATF Compliant – Conforms to federal firearms standards
• DFARS Compliant – Sourcing aligned with defense regulations
• NRA Member – Active participant in firearms manufacturing industry

Contact Us Today

Looking for precision-engineered springs and components for tactical and defense systems? Work with Plymouth Spring for ITAR-certified, ISO-compliant, USA-made solutions tailored to your mission requirements.