GLOCK® OEM Recoil Spring Assembly — Dual | 9mm | Fits Glock 43 Slimline | Part #33379

Factory Reliability, Restored Performance for Your G43

Keep your slimline carry pistol running exactly as GLOCK intended with the GLOCK OEM Dual Recoil Spring Assembly for the Glock 43 (9mm). This is the factory-original, dual-spring unit that manages slide velocity, reduces felt recoil, and supports consistent lockup for dependable cycling across training and everyday carry. If your G43’s round count is climbing—or you’re experiencing sluggish return-to-battery—refreshing the RSA with genuine Part #33379 is the smart, inexpensive way to bring performance back to spec.

Platform: Glock 43 (Slimline, 9×19) • Type: Dual recoil spring assembly (captive) • Part #: 33379 • Status: Genuine GLOCK OEM

Why Choose the OEM Dual Recoil Spring Assembly?

Designed & Tested by GLOCK

This captive dual-spring assembly is built to GLOCK tolerances, ensuring reliable timing, correct preload, and long service life compared to unknown aftermarket substitutes.

Controls Slide Velocity & Felt Recoil

The dual-spring stack cushions the slide through the recoil cycle and speeds a positive return-to-battery, helping maintain sight alignment for quicker follow-up shots.

Ready for Daily Carry & High Round Counts

Whether you’re a concealed carrier or frequent range-goer, the OEM RSA helps prevent short-stroking and erratic ejection—two symptoms of worn springs.

Fast, No-Gunsmithing Install

Drop-in replacement during routine field strip. If you can clean your G43, you can replace this part in minutes.

Key Features at a Glance

• Genuine GLOCK OEM part for authentic fit and function

• Dual, captive spring design tuned for the G43 9mm slide mass and geometry

• Reliable cycling across common defensive and practice loads

• Reduces felt recoil and promotes consistent lockup and ejection

• Drop-in installation during standard field-strip

• Part Number: 33379 (G43 Slimline)

Not for G43X or G48 MOS/standard; use the recoil spring assembly specified for your exact model. Always verify your pistol model before ordering.

Compatibility

Fits:

• Glock 43 (9mm, Slimline)

Does NOT fit:

• G43X / G48 (their slide length and RSAs differ)

• Any Gen3/Gen4/Gen5 double-stack 9mm models (e.g., G19, G17)

When Should You Replace Your RSA?

• Noticeable brass-to-face or erratic ejection

• Failures to return to battery or sluggish slide movement

• After several thousand rounds (follow your agency’s or GLOCK’s preventive maintenance intervals)

• Any time the RSA shows visible damage or has been lost during disassembly

Pro tip: Maintain a logbook of round count and replace springs proactively, especially on carry pistols.

Installation (Quick Guide)

1. Unload & Verify Clear. Remove mag; visually/physically inspect chamber.

2. Field Strip. Remove slide from frame; take out barrel.

3. Replace RSA. Lift out old assembly; seat the new OEM RSA against the barrel lug with the correct orientation.

4. Reassemble & Function Check. Cycle the slide by hand, perform a trigger reset check (dry), and verify full return-to-battery.

5. Range Confirm. Test with your carry ammo and practice loads to confirm reliable cycling.

Care & Best Practices

• Keep it OEM: Pair with factory-spec parts for predictable timing.

• Clean Wisely: Wipe carbon from the RSA during cleaning; do not soak springs in harsh solvents.

• Inspect Regularly: Look for kinks, coil set, or bent guide rod—replace at the first sign of wear.

• Verify After Any Change: Anytime you change ammo, lube, or slide-mounted accessories, re-confirm reliability.

Frequently Asked Questions

Q: Will this work in a G43X or G48?
A: No. #33379 is specifically tuned for the G43. The G43X/G48 use a different recoil system and slide length.

Q: Is this assembly captive?
A: Yes. It is a captive dual-spring unit—no loose parts during install.

Q: Do I need a gunsmith to install it?
A: Not typically. If you can field-strip your Glock, you can install this RSA. If you’re unsure, consult a certified armorer.

Q: Will it change recoil impulse?
A: It returns the pistol to factory-intended timing and feel. Worn springs can make recoil feel “snappier,” so many shooters notice smoother function after replacement.

SEO-Rich Highlights & Buyer Keywords

• GLOCK OEM recoil spring assembly for G43 9mm

• Dual, captive spring RSA restores factory reliability

• Part #33379 slimline Glock 43 recoil spring

• Drop-in installation; controls slide velocity and felt recoil

• Ideal for concealed carry maintenance and high round counts

Meta Title (SEO)

GLOCK OEM Dual Recoil Spring Assembly — 9mm, Glock 43 Slimline | Part 33379

Meta Description (SEO)

Restore factory reliability on your Glock 43 with the GLOCK OEM dual recoil spring assembly. Captive design, tuned for 9mm slimline timing. Part #33379—easy, drop-in replacement for dependable cycling.

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Responsible Use Reminder

Always unload and verify clear before maintenance. After installing any recoil spring assembly, function-test with both practice and carry ammunition. Follow all safe-handling rules and GLOCK armorer guidelines.

The End