Small Business Spotlight: G100

Welcome back to TFB’s Small Business Spotlight! In this series, we talk about small firearm-related businesses. This week, we’re taking a look at G100, a modular handgun system manufacturer from Liberty Hill, Texas.

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About G100

“G100 developed an open-source modular handgun platform, the 120R Receiver. Designed for infinite configurability, the 120R is compatible with GLOCK Gen 3 components, including slides, barrels, and lower parts kits for 9mm Parabellum, .40 S&W, and .357 SIG calibers (as used in Glock 19, 23, and 32). This single-piece, precision CNC-machined steel frame integrates the locking block, slide spring seat, trigger housing, and slide rails, offering enhanced stiffness and durability, hardened and treated with black nitride for superior wear and corrosion resistance.

Our platform empowers users to customize their firearms by selecting interchangeable grip modules, 3D-printed in durable Multi-Jet Fusion PA11 Nylon, available for purchase online and shipped directly to customers. We foster creativity by providing downloadable digital twins of our grip modules, encouraging users and industry partners to design and innovate within our ecosystem. The 120R leverages the extensive aftermarket support for GLOCK Gen 3, allowing users to pair it with their preferred components to tailor their shooting experience.”

What makes G100 unique?

“What sets it apart is the open-source ecosystem empowering hobbyists and engineers to innovate freely. Beyond G100’s 3D-printed Nylon 11 grip modules, users can leverage the downloadable digital twins to design and print custom grips or even personal defense weapon (PDW) configurations on their own 3D printers. This flexibility allows enthusiasts to experiment with unique ergonomics, textures, or specialized attachments, tailoring the 120R to precise needs. Combined with compatibility with the vast Glock aftermarket, this open platform fosters a creative sandbox for tinkerers and engineers to push firearm design boundaries, distinguishing G100 from rigid, proprietary systems.”