The Glock Recoil Spring Assembly – G19 Generation 4 (Part #8703) is a genuine OEM dual recoil spring designed specifically for the Gen 4 Glock 19. Engineered to Glock’s exacting standards, this factory recoil spring assembly helps ensure reliable cycling, reduced felt recoil, and long-term durability in one of the most popular concealed carry and duty pistols in the world.
If your Gen4 G19 is approaching high round counts, showing sluggish cycling, or you just want to stay ahead on preventative maintenance, this Glock 19 Gen 4 recoil spring assembly is the correct replacement part.
Genuine Glock OEM Recoil Spring Assembly
When it comes to critical components like recoil springs, genuine Glock parts are the gold standard:
Factory original part – Part #8703 is the correct Glock OEM recoil spring assembly for the G19 Gen 4.
Designed, tested, and approved by Glock engineers for proper timing and reliability.
Ensures your pistol continues to run as intended, without the guesswork of off-brand springs.
Using a true Glock recoil spring assembly helps maintain the legendary reliability that Glock pistols are known for.
Designed Specifically for Glock 19 Gen 4
This recoil spring assembly is purpose-built for the 4th Generation Glock 19:
Fits Glock 19 Gen 4 pistols (compact 9mm).
Also used in many G19 Gen 4-compatible configurations based on OEM Glock dimensions.
Not intended for Gen 1–3 or Gen 5 G19 models—this is a Gen4-specific assembly with the dual spring system.
If you’re unsure which generation you have, check your slide markings and frame texture; Gen 4 pistols feature the RTF-style (rough textured) grip, interchangeable backstraps, and “Gen4” marking on the slide.
Dual Recoil Spring System for Reduced Recoil & Longer Service Life
The Gen 4 Glock 19 uses a dual recoil spring assembly rather than the single-spring guide rod found in earlier generations:
Dual captive spring design helps reduce felt recoil and muzzle flip.
Spreads the recoil energy over two springs, which can increase service life compared to older single-spring setups.
Contributes to faster follow-up shots and improved control, especially during rapid fire.
Replacing a worn Gen4 recoil spring with this OEM dual-spring assembly restores the smooth, controlled recoil impulse that Glock engineered into the platform.
Restore Reliable Cycling & Function
A tired or weakened recoil spring can cause a range of issues:
Failure to return fully to battery.
Inconsistent ejection patterns.
Increased perceived recoil and slide “slap.”
Premature parts wear over time.
Installing a new Glock 19 Gen 4 recoil spring assembly 8703 helps:
Maintain proper slide velocity and timing.
Ensure reliable feeding, extraction, and ejection.
Protect other internal components from undue stress.
If your pistol has thousands of rounds through it, a fresh recoil spring assembly is one of the simplest and most effective maintenance upgrades you can make.
Captive Assembly – Easy to Install, Easy to Maintain
The G19 Gen4 recoil spring assembly is a captive unit, meaning the spring(s) and guide rod are permanently connected:
No loose springs or parts to fight during installation.
Drop-in replacement – no fitting required when used on a factory Glock 19 Gen 4 slide and barrel.
Simple field-stripping procedure makes swapping the assembly quick and straightforward.
If you can disassemble your Glock for cleaning, you can replace the recoil spring assembly—no special tools required.
Ideal for Carry, Duty, Training & Competition Pistols
Whether your G19 Gen4 is a daily carry gun, training workhorse, duty sidearm, or match pistol, a healthy recoil spring is essential:
Concealed carriers rely on consistent reliability—factory recoil spring assemblies are part of that equation.
Law enforcement and security professionals need OEM parts that stand up to duty use.
High-volume shooters and competitors benefit from periodic spring replacement to avoid malfunctions during matches or classes.
This Glock OEM recoil spring assembly helps keep your pistol in peak operational condition, regardless of how you run it.
When Should You Replace Your G19 Gen4 Recoil Spring Assembly?
While exact intervals vary with ammo type and use, many shooters and armorers recommend:
Inspecting the recoil spring assembly periodically for visible wear, coil binding, or deformation.
Replacing around 3,000–5,000 rounds for heavily-used carry or duty guns (or sooner if issues arise).
Always replacing with a factory-correct OEM part to preserve reliability and function.
If you’re starting to notice subtle changes in how your Glock 19 Gen 4 cycles—or you simply don’t remember the last time the spring was replaced—it’s smart preventative maintenance to install a fresh assembly.
Key Features – Glock Recoil Spring Assembly G19 Gen 4 (8703)
Manufacturer: Glock (Factory OEM Part)
Part Number: 8703
Model Fit: Glock 19 Gen 4 (compact 9mm)
Design: Dual captive recoil spring assembly
Function: Controls slide movement, reduces recoil, supports reliable feeding and ejection
Installation: Drop-in replacement; no fitting or special tools required
Use: Ideal for carry, duty, training, and competition G19 Gen4 pistols
(Always verify compatibility with your specific Glock model and generation before installation.)
Why Choose the OEM Glock 19 Gen 4 Recoil Spring Assembly (8703)?
Choose this Glock Recoil Spring Assembly – G19 Generation 4 8703 if you:
Want to maintain factory reliability and performance in your G19 Gen4.
Are experiencing cycling issues that may be related to a worn recoil spring.
Prefer Glock OEM parts over unknown aftermarket springs.
Are performing routine maintenance on a carry, duty, or training gun and want peace of mind.
For a small investment, you can dramatically improve or restore the reliability and feel of your Glock 19 Gen 4. If you’re serious about keeping your pistol in top shape, the Glock Recoil Spring Assembly 8703 belongs in your parts kit—and in your slide.
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