TK Custom Extended Firing Pin Kit – Smith & Wesson Centerfire Revolvers If you're looking to improve the reliability of your Smith & Wesson centerfire revolver and prevent dangerous, unexpected light strikes, TK Custom has the solution trusted by competition and duty shooters alike. This extended firing pin and spring combo kit enhances primer engagement and supports smoother trigger pulls—especially in tuned centerfire revolvers running lighter spring setups. Whether you shoot USPSA, IDPA, or carry for defense, consistent ignition matters. Key Features Availability: Ships within 4 business days REDUCES LIGHT STRIKES – Better ignition with duty, match, and bulk ammo—even with reduced-power spring kits. COMPETITION & CARRY READY – Trusted by national championship-level shooters and tuned for defensive reliability. DROP-IN INSTALL – Fits in minutes with basic tools. No gunsmithing needed. FITS MODERN CENTERFIRE REVOLVERS – J, K, L, and N Frame Smith & Wessons. Not for rimfire or pre-lock models. Why Shooters Choose TK Custom We build parts that work harder because we’re shooters who demand more. This firing pin kit is used by revolver competitors, instructors, and performance-minded shooters across the U.S. If your centerfire revolver is tuned to win—or trusted to protect—this kit makes sure it fires every time. Spec Ops Profile Part Name: Extended Firing Pin Kit Platform: Smith & Wesson J/K/L/N Frame Centerfire Revolvers Includes: 1 Extended Firing Pin + 1 Reduced Power Firing Pin Spring Install Type: Drop-In Not Compatible: Rimfire models or pre-lock Smith & Wesson frames *Quality you can see. Excellence you can feel.*