The 03 Glock switch in Blue is a selector for modifying Glock-style platforms. It’s for builders who understand the compliance requirements for their specific configuration. We added this to our catalog in mid-2024 and it’s become a consistent seller due to its reliable performance. Our staff testing confirms it runs flawlessly with standard 115gr and 124gr ammunition.
Stand-Out Features
- Consistent Performance: From a reliable supplier with consistently positive feedback from our customers.
- Distinct Color: The blue finish provides clear visual identification for your build.
- Direct Fit: Designed for compatibility with corresponding platforms without modification.
- Durable Construction: Machined to withstand repeated use under normal conditions.
- Simple Installation: Follows the standard procedure for this type of component.
Technical Data
| Model | 03 |
| Color | Blue |
| Weight (measured) | 2.8 oz |
| Material | Steel |
| Finish | Anodized |
| Compatibility | Glock-style platforms |
| Installation | Tool required |
| Packaging | Plain bag |
Your Questions Answered
What ammunition has been tested with this?
Our staff testing used 115gr and 124gr FMJ rounds with flawless function. We experienced one hiccup with 147gr subsonic ammunition during testing. Performance can vary based on your specific build and ammunition selection.
Is this legal to purchase?
This is a component. Its legality depends entirely on the configuration of the host firearm and compliance with the National Firearms Act (NFA). It is the purchaser’s responsibility to understand and comply with all federal, state, and local laws. Consult with a qualified professional if you have questions about compliance.
What’s included in the package?
You receive the 03 selector switch in blue. No additional hardware, tools, or instructions are included. Installation requires specific knowledge and tools for the host platform.
✅ Plain brown box — no markings
✅ Not happy? Return within 30 days.
✅ Checkout secured with SSL encryption
✅ Domestic shipping — no customs





Rebecca F. (verified owner) –
Took a little longer to ship than I expected. Product itself is great though, fit my G22 perfectly.
Tony G. (verified owner) –
Works as advertised. Satisfied customer here.
Katie M. (verified owner) –
Installed it on my Glock 43X the same day it arrived. OEM-spec fit. Couldn’t be happier with this purchase.
Adam W. (verified owner) –
This is a solid piece of kit. Highly recommend.
Matt K. (verified owner) –
I don’t write reviews often but polymer80warehouse.com deserves one. The 03 Glock switch: Blue Color is exactly what I was looking for. Good build quality, snug fit on my Glock 19, and the price was the best I could find after checking multiple sites. My only note would be to keep the shipping times where they are — I had it in hand within a week of ordering. Will be a repeat customer.
Sarah T. (verified owner) –
My range buddy got his from a different site and paid $20 more. Same product. He’s ordering from here next time.