top of page

Our Product Line-up

GMI Engineering empowers airgun enthusiasts to take control of their ammunition with their innovative line of slug swaging kits. Whether you're a seasoned user or just starting out, GMI offers a perfect option to craft high-performance slugs tailored to your specific airgun.

  • The SOC Kit is the ideal entry point, offering a user-friendly and affordable way to begin swaging your own slugs. This compact kit utilizes a standard arbor press, making it easy to integrate into your existing workshop.

  • For the experienced enthusiast, the SlugMaster strikes the perfect balance. This kit incorporates a dedicated adjustable guide for altering the grain sizes of slugs without the need of changing the die or buying replacement inserts, while still maintaining a manageable footprint. 

With GMI Engineering's comprehensive line of slug swaging kits, air-gunners can unlock a new level of performance and satisfaction. Take control of your ammo and experience the satisfaction of precision made by your own hands.

Freedom Series - Die Set

Introducing Precision Die Sets for Commercial Slug Production by GMI Engineering

While the Freedom Press has been discontinued due to trade restrictions, GMI Engineering continues to offer its renowned precision die sets, empowering your commercial slug manufacturing.

Unleash Versatile Production with GMI Engineering Die Sets:

  • Compatible with Freedom Press Mark I & Mark II: Leverage the existing capabilities of your Freedom Press systems with our high-quality die sets.

  • Adaptable to Other Presses: Expand your production possibilities! Our die sets can be used with other compatible presses by utilizing our precision-engineered adapters (available separately). This provides flexibility and allows you to integrate our superior die technology into your current setup.

  • Caliber Freedom: Our die sets are designed to accommodate all calibers (when used with the appropriate press and/or adapter). Cater to a wider range of customers and maximize your market reach without the need for multiple die sets per caliber.

  • Precision Engineered for Success: GMI Engineering's legacy of unwavering precision ensures that our die sets consistently produce slugs of exceptional quality, guaranteeing peak performance for your customers.

  • Invest in Efficiency: Our die sets are engineered to produce consistent grain sizes, streamlining your production process and saving you time and resources.

GMI Engineering Die Sets: The Smart Choice for Commercial Production

While other solutions may offer single-caliber options, GMI Engineering die sets, when used with compatible presses and adapters, provide unparalleled versatility and precision for commercial-scale slug manufacturing across all calibers.

Continue to Produce with Precision.

Choose GMI Engineering Die Sets.

SlugMaster

Introducing the Slugmaster :

Affordable Precision for the High-Volume Shooter

Tired of limited slug options and the hassle of multiple dies? The Slugmaster by GMI Engineering is here to revolutionize your airgun experience.

Unmatched Versatility: Unlike Single Cavity (SOC) kits that require a separate die for each slug weight, the Slugmaster allows you to create precise slugs of various grain sizes using a single die. This eliminates the need for extra parts and simplifies your reloading process.

Perfect for High-Volume Shooters: Consume a staggering 4000 to 8000 slugs a week? The Slugmaster is built for enthusiasts like you. Its efficient design lets you produce large quantities of top-quality slugs without breaking a sweat.

Precision You Can Trust: GMI Engineering is renowned for its commitment to accuracy and reliability. The Slugmaster upholds this legacy, delivering perfectly formed slugs that guarantee consistent performance downrange.

Say Goodbye to Additional Accessories: With the Slugmaster, everything you need for creating multiple grain weight slugs is included. No need to purchase separate components or fiddle with complex adjustments.

The Slugmaster vs. SOC Kits: Why Choose Versatility?

While SOC kits offer a good starting point, they limit you to a single slug weight per die. If you crave the flexibility to experiment with different slug weights, the Slugmaster is the clear winner. It eliminates the cost and hassle of acquiring multiple dies, making it the most economical option in the long run.

SOC Kits

The SOC Kit : The All-in-One Airgun Slug Maker for Enthusiasts

The SOC Kit from GMI Engineering is the perfect entry point for airgun enthusiasts who shoot through a significant amount of slugs (1000-3000 per week) and prioritize accuracy without the need for extensive weight customization.

Hit the Target Without Breaking the Bank: The SOC Kit offers a budget-friendly way to create highly accurate slugs. It utilizes a standard arbor press (not included) you might already own, minimizing upfront costs.

Scalability for the Growing Enthusiast: The SOC Kit is built for easy expansion. As your needs evolve, you can purchase additional caliber-specific inserts to create slugs for a wider range of airguns.

Tailor Your Impact: While the SOC Kit doesn't offer variable weight customization, it provides the option for interchangeable punch heads. This allows you to experiment with different head styles, like the included dimple nose pin, to fine-tune your slug's ballistic performance.

The SOC Kit is ideal for low-volume shooters who value precision and affordability. With its user-friendly design and scalability, this kit is the perfect launching pad for creating your own top-tier slugs.

Adapters

Introducing the GMI Adapter: Seamless Integration for Your other Presses.

The GMI Adapter is the perfect solution! This innovative accessory allows you to seamlessly integrate your existing press with the extensive range of high-quality dies and punches offered by GMI Engineering.

Key Benefits:

  • Expand Your Capabilities: Access a wider variety of die and punch options, enhancing your press's versatility and productivity.

  • Improved Performance: Utilize GMI's precision-engineered dies and punches for superior results and increased efficiency.

  • Easy Installation: The GMI Adapter is designed for quick and simple installation.

  • Enhanced Durability: Constructed from high-strength materials, the adapter ensures long-lasting performance and reliable operation.

  • Cost-Effective Solution: Upgrade your existing press without the need for costly replacements, making it an economical choice.

The GMI Adapter is compatible with a wide range of other press models, fill out the form, and we will provide you with the details.

Accessories

Need to buy additional parts for your SOC, SlugMaster or Freedom Press?

Visit our accessories page and choose the accessory you need!

bottom of page