Will A AR-15 Trigger Fit This Shotgun

Published on February 8, 2026
Duration: 2:35

This guide details an attempt to install an AR-15 trigger into a Derya DY12Y 12-gauge shotgun. The process involves disassembling the shotgun's lower receiver and attempting to fit a CMC AR-15/10 trigger. While the trigger initially appears to fit, live-fire testing reveals significant compatibility issues due to design differences, specifically an oversized Turkish hammer and unique pin retention systems, ultimately demonstrating that AR-15 triggers are not universally compatible with this shotgun model.

Quick Summary

Directly installing an AR-15 trigger into a Derya DY12Y shotgun is generally not compatible due to significant design differences. The Turkish-made shotgun features an oversized hammer and distinct pin retention systems that prevent proper engagement with standard AR-15 triggers like the CMC AR-15/10, leading to malfunctions such as light primer strikes or failure to fire.

Chapters

  1. 00:00Introduction: AR-15 Parts on Shotgun
  2. 00:25Testing CMC AR-15 Trigger Kits
  3. 00:33Turkish Firearms Manufacturing
  4. 00:42Differing Pin and Safety Systems
  5. 00:59Shotgun Pin Retention Methods
  6. 01:11Installing Single-Stage Flat Trigger
  7. 01:38Live-Fire Test of Trigger
  8. 01:47Failure to Fire Analysis
  9. 02:00Oversized Turkish Hammer Issue
  10. 02:11Trying Enlarged Hammer Kit
  11. 02:29Conclusion: AR Triggers Don't Fit All Shotguns

Frequently Asked Questions

Can an AR-15 trigger be installed in a Derya DY12Y shotgun?

While the Derya DY12Y shotgun is designed with some AR-15 part interchangeability in mind, directly installing a standard AR-15 trigger like the CMC AR-15/10 is not compatible. Issues arise from the Turkish-designed hammer being oversized and differences in safety detent and pin retention systems.

What are the main compatibility issues when fitting an AR-15 trigger to a Derya DY12Y shotgun?

The primary issues are the oversized Turkish hammer, which prevents proper engagement, and differences in the safety detent system and pin hole sizes. The shotgun also uses C-clips for pin retention, unlike typical AR-15 designs.

What is the pull weight of the CMC AR-15/10 trigger tested?

The CMC AR-15/10 Single Stage Drop-in Trigger tested in the video has a pull weight of 3.5 lbs. This specific trigger was evaluated for its fit and function within the Derya DY12Y shotgun.

Why did the AR-15 trigger fail to fire the shotgun?

The AR-15 trigger failed to fire the shotgun primarily because the oversized Turkish hammer on the Derya DY12Y interfered with the trigger mechanism. This resulted in light primer strikes or no strike at all, and the hammer not properly cycling.

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