The GrovTec Hammer Extension is designed to increase the hammer contact surface on Marlin lever-action rifles produced in 1983 and later. It addresses clearance and grip concerns that can occur with scoped rifles by providing a larger, more accessible striking surface. The extension installs to either the right or left side and is finished in blued steel for a traditional appearance.
Key Specifications
- Compatible with Marlin lever actions made in 1983 and later (including 39A, 39M, 1894, 1894C, 1895S, 336C, 336T, 375, 444S, Glenfield 30A).
- Constructed from steel for reliable service life.
- Provided with a blued finish as listed in the product specifications.
- Can be mounted on the right or left side to suit user preference and firearm configuration.
- This item is a hammer extension specifically sized for Marlin post-1983 lever actions.
- Product dimensions are listed as 0.10 x 3.20 x 5.10 (values provided by manufacturer).
- Height is listed as 0.1000 in the supplied specifications.
- Width and length are listed as 3.2000 (width) and 5.1000 (length) in the supplied specifications.
The GrovTec Hammer Extension offers a practical, unobtrusive way to improve control and accessibility on compatible Marlin lever-action rifles, particularly in configurations with optics or limited thumb clearance. Its straightforward design and traditional finish make it a sensible accessory for shooters seeking a durable, factory-matching solution.





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