Steyr's New Modular Pistols: AT-C Competition and AT-D Defense

Published on September 6, 2025
Duration: 1:08

This guide details the simplified disassembly process for Steyr's new AT-D and AT-C modular pistols, as demonstrated by Ian McCollum. It highlights the unique slide stop pin rotation for field stripping and emphasizes the extensive modularity, including adjustable recoil springs, multiple hammer springs, and user-customizable 3D-printed grips. The design aims to fill a market gap with immediate customization options.

Quick Summary

Steyr's AT-D (Defense) and AT-C (Competition) pistols are highly modular firearms designed to fill a market gap. Key features include a simplified disassembly via a rotating slide stop pin, dual adjustable recoil springs, three hammer spring options for trigger tuning, and open-source grip files for custom 3D printing, enabling extensive user customization.

Chapters

  1. 00:00Introduction to Steyr AT-D and AT-C
  2. 00:14Design Philosophy and Market Gap
  3. 00:24Open-Source Customization
  4. 00:31Disassembly Mechanism
  5. 00:39Internal Modularity
  6. 00:47Launch Availability

Frequently Asked Questions

What are the key modularity features of the Steyr AT-D and AT-C pistols?

The Steyr AT-D and AT-C pistols offer significant modularity, including dual adjustable recoil springs, three different hammer spring options for trigger tuning, and open-source grip files for custom 3D printing.

How is the disassembly process simplified on the Steyr AT-D/AT-C?

Disassembly is simplified by a unique slide stop pin mechanism. Instead of removing the pin entirely, users push it inwards and then rotate it downwards to release the slide from the frame.

What market gap do the Steyr AT-D and AT-C pistols aim to fill?

These pistols were developed to address the market void created by the unavailability of European-made Sig Sauer P226 models, offering a highly modular and customizable alternative.

Can users create custom grips for the Steyr AT-D/AT-C?

Yes, Steyr provides grip profiles as open-source files, allowing users to download and 3D print their own custom grips, ensuring a personalized fit and feel.

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