The Ruger GP100 is a renowned revolver prized for its reliability and ruggedness. However, many shooters find the factory trigger pull a bit heavy and gritty. A trigger job can significantly improve the feel and accuracy of your GP100, transforming it from a reliable shooter into a precision instrument. This guide delves into the intricacies of a GP100 trigger job, covering everything from preparation to polishing, empowering you to achieve a smoother, crisper trigger pull.
Understanding Your Ruger GP100's Trigger Mechanism
Before embarking on your trigger job, understanding your GP100's internal mechanisms is crucial. This revolver uses a double-action (DA) and single-action (SA) trigger system. A DA pull involves cocking the hammer and releasing it simultaneously, while SA requires manually cocking the hammer before pulling the trigger. The trigger job will focus on improving both DA and SA trigger pulls. Improper modifications can compromise safety and functionality, so proceed with caution and attention to detail.
Essential Tools for the Ruger GP100 Trigger Job:
- Gunsmithing Screwdrivers: A quality set with various sizes and types is essential for precise adjustments.
- Action Spring Tool: This specialized tool helps compress springs safely without risking damage.
- Polishing Compounds: Various grits of polishing compounds (e.g., 220, 400, 600 grit) are needed for smoothing surfaces.
- Files and Stones: Fine-grit files and stones for shaping and smoothing metal parts.
- Stonishing (optional): This helps remove material efficiently during the polishing process.
- Protective Gear: Safety glasses, gloves, and a clean workspace are paramount to avoid injury.
- Gun Cleaning Supplies: A thorough cleaning before and after the job is crucial.
Steps Involved in a Ruger GP100 Trigger Job:
This process requires patience and precision. Take your time, and if unsure, consult a qualified gunsmith.
1. Disassembly and Cleaning:
- Thoroughly clean your GP100 before commencing the trigger job. This will prevent debris from interfering with the process.
- Carefully disassemble the revolver, following a reliable disassembly guide specific to the GP100 model. Photos or videos are incredibly helpful during this step. Consult your owner's manual or reputable online sources.
2. Trigger and Hammer Spring Adjustment:
- Reduce Hammer Spring Tension (Caution!): This step can impact reliability and should be approached carefully. Reducing the tension will lighten the pull weight. Excessive reduction can lead to misfires or light strikes.
- Trigger Spring Adjustment: Similar to the hammer spring, adjusting the trigger spring can affect trigger weight and travel. Slight adjustments are usually sufficient to yield noticeable improvements.
3. Polishing and Smoothing:
- Identify Friction Points: Carefully examine the trigger, hammer, and sear components, noting areas of contact that contribute to the roughness.
- Strategic Polishing: Using your polishing compounds and tools, gently smooth out these friction points. Focus on even polishing to maintain the integrity of the surfaces.
4. Reassembly and Testing:
- Carefully reassemble the Ruger GP100, ensuring all components are correctly placed.
- Test the trigger pull. This is crucial to ensure functionality and safety before shooting. If the trigger pull feels too light or shows inconsistencies, repeat the process with minor adjustments until satisfactory results are achieved.
Advanced Trigger Job Techniques:
For more significant improvements, more advanced techniques may be considered:
- Sear Engagement Modification: Adjusting the sear engagement can further reduce the trigger travel and over-travel. However, this requires significant expertise and precision, and should only be attempted by experienced gunsmiths.
- Trigger Bar Polishing: Focusing on polishing the trigger bar itself can result in a smoother trigger feel.
Disclaimer:
Modifying firearms requires expertise and safety consciousness. Incorrect modifications can lead to malfunction, injury, or even death. If you lack experience or confidence, seek the services of a qualified gunsmith. This guide serves as educational information and does not constitute professional guidance. Always consult your owner's manual and follow all safety precautions.
