Sig Classic Pistol Troubleshooting Guide

Sig Classic

Sig P220

Most semi-automatic pistols operate using the same or in a similar method. However, each manufacturer has their own troubleshooting procedures. This guide focuses on the Sig Classic Pistol which includes the P220, P224, P225, P226, P228, P229, M11, P6 and the P239

About the Sig Classic Pistol Troubleshooting Guide

For the Sig Classic Pistol Troubleshooting Guide, I have compiled a list of the Sig Sauer recommended procedures for the Classic Pistols in the following table. This is by no means a complete list of troubleshooting steps but is a good starting point for the most common issues that you may encounter. 

To use these troubleshooting guides, first located your problem in the first column then try the causes starting from the top and working down. If you reach the bottom of the problem and your firearm is still not functioning correctly, you should seek the advice of the Manufacturer or an Armorer that is certified by the manufacturer for that model.  

Sig Classic Pistol Troubleshooting Guide Tables:

Feeding Issues

ProblemCauseCorrection
No cartridge fed into chamber
1 - Magazine not seated properly Check if Magazine is properly inserted
2 - Magazine dirty or damagedInsert another magazine, clean or replace magazine that was removed
3 - Weak Magazine springReplace Magazine Spring
4 - Corroded, dirty or damaged ammunitionChange ammunition
Cartridge does not chamber1 - Cartridge incorrectly fedCheck your magazine, change magazine
2 - Poor quality ammunitionChange ammunition
Slide does not close completely1 - Shooter errorKeep wrists locked and maintain a firm grip when firing
2 - Out of spec or defective ammunitionReplace ammunition
3 - Dirty pistolField strip pistol, clean and lubricate
4 - Dirty chamberClean the chamber and bore
5 - Recoil spring weak or BorkenReplace recoil spring
6 - Recoil spring guide damagedReplace recoil spring and guide
7 - Too much lubricationUse proper cleaning and lubrication proceedures
Double Feed1 - Low quality ammunitionReplace ammunition
2 - Dirty extractorClean the breach face under the extractor
3 - Broken or damaged extractorReplace extractor
4 - Damaged magazineReplace magazine
5 - Shooter errorKeep wrists locked and maintain a firm grip when firing
6 - Ruptured case in chamberClear, clean and inspect the pistol, replace ammunition

Extraction and Ejection Issues

ProblemCauseCorrection
Slide traveled rearward but spend case sticks in the chamber1 - Under-powered ammunitionReplace ammunition
2 - Dirty extractorClean the breach face under the extractor
3 - Damaged or broken extractorReplace extractor
4 - Ruptured case in chamberClear, clean and inspect the pistol, replace ammunition
Inconsistent ejection (including trapped brass in the ejection port)1 - Poor quality ammunitionReplace ammunition
2 - Shooter errorKeep wrists locked and maintain a firm grip when firing
3 - Broken or damaged extractorReplace extractor
4 - Ejector damagedReturn to factory or replace ejector
5 - Dirty pistolField strip pistol, clean and lubricate

Miscalenious Issues

ProblemCauseCorrection
Trigger remains rearward after being pulled and no longer under pressure1 - Trigger bar spring incorrectly installed or brokenCheck for correct installation, replace if broken
Slide is arrested before last round is fired1 - Thumb is resting under slide catch lever pushing it upChange grip so that thumb is not riding under the slide catch lever
2 - Damage slide catch lever springReplace slide catch lever spring
Slide is not arrested after last shot1 - Thumb is riding on the slide catch leverChange grip so that thumb is not riding on the slide catch lever
2 - Under powered ammunitionReplace ammunition
3 - Slide catch lever is brokenReplace slide catch lever
4 - Slide arresting notch is damagedReturn to factory for repair, replace slide.

Learn more about the Sig Classic Pistol

We have several videos and articles about the Sig Classic series of pistols. To learn more consider the following videos and articles. These videos and articles will walk you through several aspects of the Sig Classic Series of firearms. 

Videos on how to maintain the frame

Sig Classic E2 Grip Removal and Install Video

Sig Classic Frame Disassembly Video

Sig Classic Frame Reassembly Video

Videos on how to maintain the slide

Sig Classic Carbon Steel Slide Disassembly Video

Sig Classic Carbon Steel Slide Reassembly Video

Sig Classic Stainless Steel Slide Disassembly Video

Sig Classic Stainless Steel Slide Reassembly Video

Videos and articles about maintaining the Sig Classic Pistol

Sig Classic Field Strip Video

Sig Classic Recoil Spring Color Guide

Sig Classic Pistol Troubleshooting Guide

Sig Classic Pistol Function Checks

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