Recoil Spring Assembly — Gen 4, Complete Captured Unit (Part No. 100006217)
Model/Part #: 100006217 • Type: Gen 4 Recoil Spring Assembly • Category: Firearm Replacement Parts • Configuration: Captured recoil spring + guide rod • Use: Factory-style replacement / preventive maintenance
Restore factory timing and reliable cycling with the Gen 4 Recoil Spring Assembly (100006217)—a complete, captured unit designed for fast drop-in replacement. Whether you’re refreshing a high-round-count slide, troubleshooting sluggish return-to-battery, or planning preventive maintenance, this Gen 4 RSA brings your pistol’s operating system back to OEM performance for everyday carry, training, or duty use.
Why Upgrade or Replace Your Gen 4 Recoil Spring Assembly
Return-to-Battery You Can Trust: A fresh recoil spring assembly helps ensure consistent chambering and lockup for improved reliability across ammo types.
Factory-Correct Timing: Restores slide timing and dwell time—critical for proper extraction, ejection, and feeding.
Reduced Felt Recoil & Muzzle Dip: Balanced spring rate helps manage reciprocating mass for flatter tracking shot-to-shot.
Captured Convenience: The spring is retained on the guide rod for drop-in installation with no small parts to chase.
Maintenance Made Easy: Ideal as a wear part replacement at regular round-count intervals to prevent stoppages before they start.
Key Features & Benefits
Complete Captured Unit: Guide rod + spring delivered as a single assembly for quick, tool-free installation.
Gen 4 System: Tuned for Gen 4-style pistols using a dual/optimized spring format (verify model fit).
Durable Components: Built to withstand high round counts and common training ammo.
Consistent Cycling: Supports reliable function with standard-pressure practice loads as well as most defensive offerings.*
Cost-Effective Refresh: One of the smartest, lowest-cost reliability upgrades you can make on a high-mileage slide.
*Always function-test with your specific ammunition after installation.
When to Replace Your Recoil Spring Assembly
Every 3,000–5,000 rounds for most range users (earlier for high-pressure ammo or heavy training cycles).
Visible fatigue: Shortened free length, kinks, binding, or sluggish slide movement.
Erratic ejection: Brass dribbling, stovepipes, or failures to go into battery can indicate a worn spring.
After Parts Swaps: If you change slides, barrels, or optics (added mass), refresh the RSA to maintain timing.
Installation (At a Glance)
Unload & Clear: Remove magazine, lock slide open, and verify an empty chamber.
Field Strip: Separate slide, barrel, and current recoil spring assembly.
Drop In: Seat the front of the guide rod in the slide, then capture the barrel lug/notch as specified by your pistol’s manual.
Reassemble & Test: Function check, then live-fire test with your carry and practice ammo.
Compatibility Note: “Gen 4” recoil spring assemblies are platform-specific. Confirm your pistol’s make, model, and generation, along with this part number (100006217), before purchase. If your slide has been modified (comped barrel, optic cut, match slide) you may need a different spring rate.
Best Practices & Pro Tips
Keep a Spare: Serious shooters keep a spare RSA in the range bag to minimize downtime.
Match to Slide Mass: Heavy slides/optics sometimes benefit from alternative spring rates—consult your manufacturer’s guidance.
Lube Lightly: A light film on the guide rod can smooth initial break-in; avoid over-lubrication.
Document Round Count: Track round counts in a log to schedule proactive replacements.
FAQ
Q: Is this the same as an “OEM-style” Gen 4 RSA?
A: Yes—this is a captured recoil spring assembly intended to restore factory-type function and timing on Gen 4-format pistols, pending model fit verification.
Q: Will it work with compensated or ported barrels?
A: Comps/ports can alter slide dynamics. Many shooters use a different spring rate for compensated setups. Test thoroughly for reliability.
Q: Do I need tools to install it?
A: Typically no. Most pistols accept a captured RSA as a drop-in during a normal field strip.
Q: How do I know it’s time to replace?
A: Sluggish return-to-battery, erratic ejection, or a visibly tired spring are common indicators. Many users replace on a round-count schedule to avoid surprises.
Q: Is this compatible with all Gen 4 pistols?
A: Generations are a guide, not a guarantee. Always check your exact model and the part number 100006217 for confirmed fit.
SEO Highlights (Quick Scan)
Gen 4 recoil spring assembly — complete captured unit for factory-style reliability
Restores slide timing, return-to-battery, and consistent ejection
Ideal wear-part replacement for high-round-count pistols; drop-in install
Part No. 100006217 — verify model-specific fit before purchase
Refresh your pistol’s reliability in minutes with the Gen 4 Recoil Spring Assembly (100006217)—a captured, drop-in solution that brings your slide timing and return-to-battery back to factory confidence.
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