©2019 by GMI Engineering. 

Independence. Flexibility. Consistency. 

Precision tools for "Do it yourself" Slugs


How We Got Here

GMI Engineering was founded by engineers and field target enthusiasts, eager to offer the best-engineered "Slug swage kit" at a relatively reasonable price to customers worldwide. Whether you’re interested in making your own slugs or resizing commercially available pellets/slugs, our store brings to you both the options.

Check out our online DIY tools and accessories store today and get in touch if you have any questions or suggestions.


Contact us​

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