---
title: blog | ATF Compliance
description: ATF Compliance |
---

# San Antonio Laser

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# blog

Select Category ATF Compliance Fiber Laser Firearms

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Posts about:

## ATF Compliance

[ATF Compliance](https://go.salasers.com/blog/tag/atf-compliance)

### [How Deep Can a Fiber Laser Engrave? ATF .003" Depth on 30W, 50W & 100W](https://go.salasers.com/blog/how-deep-can-a-fiber-laser-engrave-atf-.003-depth-tested-on-30w-50w-100w)

Oct 7, 2026, 2:15:28 PM

**Short answer:** Yes. A properly set-up fiber laser, including a 30W machine, can engrave serial numbers to the ATF's .003" minimum depth on steel and aluminum. Wattage changes *how fast* you get there, not *whether* you can. In our shop, an Edge 30W reaches .003" on a 1/16"-tall serial number in 20 passes, about 2 minutes. Below is what the rule requires, how time compares across wattages, and the settings and measuring habits that keep your marks compliant.

[Shane Mohr](https://go.salasers.com/blog/author/shane-mohr) 

[Read More](https://go.salasers.com/blog/how-deep-can-a-fiber-laser-engrave-atf-.003-depth-tested-on-30w-50w-100w)

![ATF compliant fiber laser engraving on AR lower by SA Laser](https://go.salasers.com/hubfs/Engravings%20-%20Firearms/A10%20WartHog%20AR.jpg)

[Fiber Laser,](https://go.salasers.com/blog/tag/fiber-laser) [ATF Compliance,](https://go.salasers.com/blog/tag/atf-compliance) [Firearms](https://go.salasers.com/blog/tag/firearms)

### [Fiber Laser Engraving for Firearms: ATF Compliance Guide](https://go.salasers.com/blog/fiber-laser-engraving-for-firearms-atf-compliance-guide)

Jun 22, 2026, 1:06:43 PM

If you're running a firearms customization shop — or thinking about adding compliance marking to your services — there's one question that comes up faster than any other:

[Shane Mohr](https://go.salasers.com/blog/author/shane-mohr) 

[Read More](https://go.salasers.com/blog/fiber-laser-engraving-for-firearms-atf-compliance-guide)

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