Deep Expertise in Precision Manufacturing – Serving Defense and High-End Industries

The story of MMG CNC dates back to 1979 when our family-owned machine shop laid a strong foundation in precision manufacturing. Our founder began working in the family business in 1999, accumulating over 25 years of hands-on experience in CNC machining. Through years of hands-on expertise, he developed a deep understanding of the industry's rigorous demands for precision, efficiency, and quality. In 2018, he established MMG CNC in Upland, California, with a mission to push the boundaries of precision manufacturing by integrating advanced automation technologies, cutting-edge equipment, and the latest machining techniques. Today, we proudly serve the defense, aerospace, firearms, and industrial manufacturing sectors, delivering high-precision CNC machining solutions.

We understand that in a highly competitive market, customers not only demand superior-quality components but also require cost-effective production, optimized supply chain efficiency, and on-time delivery. These principles define the core values of MMG CNC.

Precision Manufacturing & Quality First

At MMG CNC, we firmly believe that quality is not an added benefit—it is the foundation of everything we do. Our comprehensive quality control system adheres to ISO 9001 standards and is reinforced by rigorous management processes to ensure precision and consistency in every component:

  • SPC (Statistical Process Control): Real-time production monitoring to reduce deviations and maintain consistency.
  • FAI (First Article Inspection): Ensuring the first part in every order meets exact specifications, preventing batch-wide defects.
  • CMM (Coordinate Measuring Machine) & Optical Inspection: Achieving micron-level accuracy to meet the stringent requirements of high-precision industries.
  • Strict Material Certification (COC, ROHS, REACH): Guaranteeing compliance with industry and governmental regulations for all raw materials.
  • 6S Workplace Management (Sort, Set in Order, Shine, Standardize, Sustain, Safety): Implementing color-coded tool placement in production lines to minimize search time and enhance efficiency.
  • Lean Six Sigma (LSS): Utilizing the DMAIC (Define, Measure, Analyze, Improve, Control) methodology to minimize waste, improve CNC machining consistency, and increase the overall yield rate.

Cost Reduction, Efficient Production & Flexible Delivery

Beyond CNC machining, we position ourselves as a strategic partner in manufacturing optimization. Operating in industries where high precision, demanding requirements, and complex challenges are the norm, we leverage intelligent manufacturing and advanced processes to help customers reduce costs and enhance market competitiveness:

  • Design for Manufacturability & Assembly (DFM/DFA): Optimizing part designs during the early stages to reduce machining complexity and lower production costs.
  • Rapid Prototyping: Accelerating product development cycles, enabling customers to complete testing and bring products to market faster.
  • Flexible Manufacturing: Supporting both small-batch and high-mix production, catering to the specific needs of defense, aerospace, and industrial sectors.
  • Smart Supply Chain Management & Just-in-Time (JIT) Delivery: Providing precise inventory control and optimized logistics to reduce warehousing costs, improve capital efficiency, and ensure parts arrive at the right place at the right time.

Technology-Driven, Industry-Specific Solutions

In high-end manufacturing, technological advantages drive competitiveness. At MMG CNC, we continuously invest in state-of-the-art equipment and manufacturing technologies to deliver optimal solutions for our customers:

  • 5-Axis & Multi-Axis CNC Machining: Enabling complex part production with reduced setups, higher precision, and minimized manual intervention, effectively lowering overall production costs.

Automation & Lights-Out Machining: Leveraging intelligent manufacturing systems to enhance productivity while reducing labor costs, making CNC machining more cost-effective and scalable.

A Trusted Manufacturing Partner

In the defense, aerospace, firearms, and industrial manufacturing industries, product quality, cost efficiency, and delivery reliability are critical factors that determine market competitiveness. At MMG CNC, our exceptional CNC machining capabilities, rigorous quality control, streamlined production processes, and flexible supply chain management ensure that every component is delivered on time, on demand, and within budget, maximizing value for our customers.

Looking ahead, we remain committed to advancing manufacturing technologies, optimizing operational efficiency, and upholding the highest quality standards. Through cost-effective, scalable, and sustainable precision manufacturing solutions, we empower our customers to reduce costs, enhance productivity, and achieve long-term success in their industries.