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Shop trigger springs at No Boring Guns for pistol upgrades and custom builds. Quality replacement springs deliver reliable performance for competition, defensive carry, and recreational shooting applications.
Trigger springs control the resistance felt during trigger press and the speed of trigger reset after firing. Most pistol trigger systems use multiple springs – typically including mainspring, trigger return spring, and sometimes firing pin springs.
Choosing Trigger Springs
Pull Weight Requirements
Reduced pull weight improves trigger control for many shooters, particularly in competition contexts where precision matters most. Lighter springs allow smoother trigger press with less disturbance to sight alignment. However, reducing spring tensions carries tradeoffs. Excessively light mainsprings may cause ignition failures with hard primers. Defensive pistols generally benefit from maintaining adequate spring tension for reliable ignition across ammunition types and conditions. Competition applications allow more aggressive spring reduction since shooters control ammunition selection and maintain firearms more frequently.
Reliability Considerations
Spring selection affects mechanical reliability throughout the firing cycle. Mainspring tension must provide sufficient energy for consistent primer ignition, particularly with harder military primers or in cold conditions. Trigger return springs need adequate tension to ensure positive trigger reset without shooter intervention. Firing pin springs balance ignition energy against preventing slam-fires or out-of-battery ignition. Quality spring kits provide tested combinations that maintain reliability while improving feel. Single spring replacements require understanding how that component interacts with the complete fire control system.
Material Quality and Durability
Spring materials determine service life and performance consistency. Music wire and chrome silicon are common materials offering different strength and fatigue characteristics. Premium springs maintain specified tensions longer under repeated compression cycles. Lower quality springs may weaken prematurely, causing velocity variations or reliability issues. Properly manufactured springs should provide thousands of cycles before requiring replacement, though competition shooters often replace springs preventatively to maintain consistent performance.
