EGW 1911 Parts
1911 Firing Pins: Size Guide & Product Selection
Compare EGW 1911 firing pins in .066", .068", .075", and .092" diameters. Find the correct starting point for your Colt, Caspian, Springfield, Prodigy, 1911, or 2011 slide.
Quick Check: Measure Before Ordering
Manufacturer and caliber associations are useful starting points, but they are not guaranteed fitment specifications. Dimensions can vary by firearm model, caliber, slide manufacturer, and production run. Measure your existing firing pin and confirm your slide's requirements before ordering.
A firing pin is a critical part of a 1911's ignition system. When struck by the hammer, it moves forward through the slide and contacts the cartridge primer. Proper diameter, movement, and fit are necessary for safe and reliable operation.
There is no single universal 1911 firing pin size. EGW offers multiple diameters so builders and gunsmiths can select the firing pin that properly matches the slide being serviced.
Shop EGW 1911 Firing Pins by Diameter
Select a firing pin below to view its complete specifications and product information. The firearm associations shown are common applications only.
View All Available 1911 Firing Pins
Browse all available EGW firing pins together on our filtered 1911 Slide Parts page.
Shop All 1911 Firing Pins1911 Firing Pin Size Comparison
Use this chart as a starting point. It does not replace measuring the existing part or confirming the slide manufacturer's specifications.
| Diameter | Common Association | What to Confirm |
|---|---|---|
| .066" | Most Springfield Prodigy pistols and certain modern slides | Measure the original firing pin and verify the individual slide |
| .068" | Common Colt, Caspian, 1911, and 2011 applications | Confirm firing pin diameter, profile, and slide requirements |
| .075" | Many Springfield Armory 1911 slides | Do not assume every Springfield uses the same diameter |
| .092" | GI-style .45 ACP and custom oversize applications | Confirm that the slide is designed or prepared for this diameter |
How to Select the Correct 1911 Firing Pin
Do not choose a firing pin based only on caliber or the firearm manufacturer's name. The correct selection depends on what the individual slide actually requires.
Identify the Existing Firing Pin
Use the firearm's existing correctly fitted firing pin as the starting point for identifying the required dimensions.
Measure the Pin Diameter
Use an appropriate precision measuring instrument to determine the diameter near the firing pin tip.
Confirm the Slide Requirements
Verify that the selected diameter and configuration match the slide, firing pin stop, safety system, and related components.
Inspect the Completed Fit
The firing pin must move correctly and maintain proper clearances. Professional gunsmith installation and inspection are required.
Why Are There Different 1911 Firing Pin Sizes?
The 1911 has been manufactured for more than a century by many companies and in numerous calibers and configurations. Manufacturers have used different firing pin and firing pin opening dimensions throughout that history.
Manufacturer Differences
Colt, Caspian, Springfield, and other manufacturers may use different specifications.
Caliber Differences
Different calibers are sometimes associated with different diameters, but caliber alone does not guarantee fit.
Custom Slide Work
Replacement slides, previous gunsmithing, wear, or custom machining can affect the required size.
Firing Pin vs. Firing Pin Stop
Although their names are similar, the firing pin and firing pin stop are separate components with different functions.
1911 Firing Pin
The firing pin moves through the slide and contacts the primer when struck by the hammer. Its diameter and fit must match the slide.
1911 Firing Pin Stop
The firing pin stop retains the firing pin and helps control the extractor's position at the rear of the slide.
Learn About 1911 Firing Pin Stops
Do You Also Need a Firing Pin Spring?
The firing pin spring is a separate component and is not automatically included with each firing pin. Inspect the existing spring and replace it when appropriate for the firearm's maintenance needs.
View ISMI Premium Firing Pin SpringProfessional Fitting Required
These are gunsmith-fit components. Minor fitment may be required. Selecting a firing pin based only on the firearm model, manufacturer, or caliber can result in an incorrect part. The firing pin must be measured, fitted, and inspected for proper movement and operation by a qualified gunsmith.
1911 Firing Pin FAQ
What size firing pin does my 1911 use?
There is no universal answer based solely on the words “1911” or “.45 ACP.” Measure the existing firing pin and confirm the specifications of the individual slide.
Can I substitute one firing pin diameter for another?
Do not substitute firing pin diameters without confirming the required clearances and slide specifications. An incorrect diameter can result in improper fit or operation.
Do all Springfield 1911 pistols use a .075" firing pin?
No. While .075" is commonly associated with many Springfield 1911 slides, specifications can vary. Most Prodigy pistols are commonly associated with .066", but every firearm should be measured and verified.
Is a firing pin the same as a firing pin stop?
No. The firing pin contacts the primer. The firing pin stop retains the firing pin and helps position the extractor at the rear of the slide.
Are EGW 1911 firing pins drop-in parts?
They should not be treated as universally drop-in components. Minor fitment may be required, and professional gunsmith installation and inspection are required.
Find the Correct EGW 1911 Firing Pin
Compare all four diameters, verify the requirements of your slide, and select the EGW firing pin that matches your application.