GLOCK OEM Recoil Spring Assembly – Compatible with Glock 20/21 (SP05586)GLOCK OEM Recoil Spring Assembly – For Glock 20 & Glock 21 (Part No. SP05586)
When precision, reliability, and smooth operation matter most, trust the genuine Glock OEM Recoil Spring Assembly designed specifically for the Glock 20 and Glock 21 models. Engineered to meet the exacting standards of Glock’s original equipment manufacturer (OEM), this assembly restores factory‑grade performance and extends the service life of your pistol.
Key Benefits of the OEM Recoil Spring Assembly
- Original Equipment Quality: Manufactured to Glock’s exact specifications for flawless fit and function.
- Consistent Cycling: Optimized spring tension ensures reliable feeding, extraction, and ejection in all shooting conditions.
- Reduced Wear: Proper recoil management minimizes stress on the slide, barrel, and other internal components.
- Easy Installation: Designed for straightforward drop‑in replacement with standard Glock tools.
- Durable Construction: High‑strength steel spring provides long‑term durability and resistance to fatigue.
Product Specifications
| Specification | Details |
|---|
| Part Number | SP05586 |
| Compatible Models | Glock 20 (9mm 10‑Round), Glock 21 (.45 ACP 10‑Round) |
| Material | High‑grade spring steel with corrosion‑resistant coating |
| Spring Length (Uncompressed) | ~31 mm (1.22 in) |
| Spring Weight (Load) | ~29.5 lb (13.4 kg) |
| Finish | Black phosphate, oil‑treated |
| Warranty | 12‑month limited warranty against manufacturing defects |
Why Choose an OEM Recoil Spring Over Aftermarket Alternatives?
While many aftermarket springs claim improved performance, the Glock OEM assembly guarantees:
- Exact spring tension calibrated for Glock’s unique lock‑up system.
- Compatibility with Glock’s factory‑approved tolerances, preventing timing issues.
- Full support from Glock’s warranty program when paired with other genuine parts.
- Peace of mind for competitive shooters, law‑enforcement professionals, and defensive users alike.
Installation Guide – Quick Overview
- Ensure the firearm is unloaded and the magazine removed.
- Field strip the pistol according to Glock’s standard disassembly procedure.
- Remove the existing recoil spring assembly from the frame.
- Insert the new OEM assembly, confirming the spring sits evenly in the designated groove.
- Reassemble the slide, perform a function check, and verify smooth cycling.
For best results, consult the Glock user manual or a qualified gunsmith if you are unfamiliar with firearm maintenance.
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Customer Assurance
Every Glock OEM Recoil Spring Assembly undergoes rigorous quality control testing before leaving the factory. We stand behind the authenticity and performance of our product, ensuring your Glock 20 or Glock 21 operates as the manufacturer intended.
Order Today and Experience Factory‑Level Performance
Upgrade your pistol with confidence—choose the original Glock part that delivers the reliability you need for training, competition, and self‑defense.
Compatibility: Glock 20 (9×19mm) & Glock 21 (.45 ACP) – Part No. SP05586
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