Carbon Fiber
Retail Supplies for all your projects.
Custom Fiberglass
Fabrication Galleries
Custom Plastic
Custom Plastic Machining
Custom Polypro Welding
(760) 744-8909
235 Bingham Dr.
San Marcos
CA , 92069
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Since 1980 MGM Plastics has been the premier plastic and fiberglass fabrication facility for Southern California. We specialize in custom fabrication from walk-in customers to Fortune 500 companies. From short run assembly to long run production we have all the machinery and knowledge in house to bring your schematic or hand drawn specifications to fruition.

Our extremely versatile fabrication department can produce simple to extravagant finished products in a timely manner to meet your needs.

We have a fully stocked retail store, plastic fabrication, plastic welding, CNC machining and a full fiberglass fabrication facility. Our 16,000 square foot warehouse stocks most of the plastics ready to use for your project.

With over 31 years in the industry, we have been family owned and operated to keep our specialization and knowledge base intact. On-time delivery is a cornerstone of our philosophy and we pride ourselves on our long-term commitment to customer service and satisfaction.

From the initial order to the final shipment, our standards compel us to do the highest quality job, one part at a time. San diego, plastics, fabrication, carbon fiber, custom fabrication, fiberglass body, buggy body, polypropylene, plexiglass, manx, plastic welding, forming, cutting, mill, lexan, kydex, acrylic, rod, sheets, supplies, blog, how-to, how to