Firing Pin Safety & Spring – Precision OEM-Style Replacement
Drop-In Reliability • Smooth, Consistent Reset • Corrosion-Resistant Components
Part #: 100002679
Restore confidence in every press with a Firing Pin Safety & Spring designed to keep your striker-fired pistol running safely and smoothly. This two-piece set renews one of the most important passive safeties in your slide: the firing pin safety plunger and its matched coil spring. Worn or gunked-up parts can create gritty take-up, sluggish striker movement, and inconsistent reset. Swapping in a fresh safety plunger + spring helps deliver cleaner pre-travel, reliable striker block function, and repeatable trigger feel—range day after range day.
Whether you’re returning a high-mileage duty pistol to factory-fresh performance or completing a preventive maintenance service, Part 100002679 is a smart, low-cost upgrade that protects both safety and shootability.
Why This Firing Pin Safety & Spring Set Stands Out
Safety-Critical Refresh
Replaces the striker block (firing pin safety) and return spring to ensure the striker stays blocked until the trigger bar fully lifts the plunger—an essential layer of drop safety.
Smoother Trigger Take-Up
A new, correctly rated spring and polished plunger surface can reduce grit and drag you feel during the initial trigger stroke.
Reliable Reset & Consistency
Fresh spring tension supports consistent trigger bar lift and positive reset, especially on hard-run training or carry pistols.
Durable Materials
Precision-machined plunger with a wear-resistant finish and a corrosion-resistant coil spring for long service life in duty, EDC, or competition environments.
Maintenance Friendly
A simple, inexpensive part swap that pays big dividends for function checks, armorers’ schedules, and PM cycles.
Always verify firearm is unloaded before any service. If you’re not experienced with slide internals, consult a qualified gunsmith/armorer.
Key Features & Specs
Components Included:
Function: Blocks striker/firing pin movement until the trigger bar lifts the plunger clear
Construction: Hardened steel plunger; corrosion-resistant coil spring
Finish: Low-friction, wear-resistant treatment (on plunger)
Use Case: Preventive maintenance, repair of sluggish or gritty triggers, reliability refresh
Part Number: 100002679
Signs You May Need a Replacement
Noticeable grit or drag during pre-travel/take-up
Inconsistent reset or intermittent light primer marks (with other causes ruled out)
High round count since last service or exposure to debris, oil varnish, or carbon inside the slide channel
Plunger face shows scoring, peening, or corrosion
Installation Overview (General Guidance)
Unload & Clear: Remove magazine, lock slide open, inspect chamber.
Fieldstrip & Remove Slide Internals: Extractor depressor plunger and backplate per manufacturer procedure, then remove striker assembly.
Swap Components: Depress the existing firing pin safety, remove extractor (as applicable), lift out the old plunger and spring; install the new spring and plunger in the correct orientation.
Reassemble & Function Check: Ensure the plunger moves freely and returns under spring tension. Confirm the striker remains blocked until the trigger bar lifts the safety during a dry-function test.
Live-Fire Verify: Test with your normal ammunition to confirm positive reset and reliable ignition.
Note: Procedures vary by make/model. Use proper tools and follow your firearm manufacturer’s manual. Professional installation is recommended.
Care & Maintenance Tips
Clean the Plunger Channel during each major service to remove carbon/oil sludge.
Use a light, non-gumming lubricant sparingly—excess oil can collect debris and slow the safety.
Add this part to your armorer’s PM schedule (e.g., every 5–10k rounds or per OEM guidance).
Frequently Asked Questions
Q: Will this improve my trigger?
A: It restores intended factory feel by removing grit caused by a worn/dirty plunger and weak spring. For lighter pull weights, consider an approved trigger kit—safety must always come first.
Q: Is fitting required?
A: Typically no. This set is intended as an OEM-style drop-in. Always verify smooth movement and full safety function after installation.
Q: Can I just replace the spring?
A: You can, but best practice is to replace both the plunger and spring together for consistent results.
Q: Will heavy lubricant help?
A: Avoid heavy greases in the safety channel. Use minimal, light oil—or run dry if your OEM recommends.
Q: Is this compatible with all striker-fired pistols?
A: This listing is for Part 100002679. Check your pistol’s parts diagram or consult the seller for model-specific compatibility before purchase.
SEO Highlights (Quick Scan)
Firing Pin Safety & Spring replacement set – Part #100002679
Restores drop safety function and smooth trigger take-up
Hardened plunger + corrosion-resistant spring for long life
Ideal for preventive maintenance and reliability refresh
Compatible with select striker-fired pistol models (verify fit)
The Bottom Line
A small part with a big job: the Firing Pin Safety & Spring (100002679) renews a critical layer of your pistol’s safety while smoothing pre-travel and supporting a consistent reset. If your slide has high mileage—or your trigger feels gritty—this simple refresh brings confidence back to every press.
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