How Accurate Is My 9mm Shotgun?

Published on December 19, 2025
Duration: 1:50

This guide details the process of using a 12-gauge to 9mm adapter with a GForce Arms Filthy Pheasant shotgun. It covers the installation of the adapter, loading, and firing a 9mm round, emphasizing the importance of safety checks and noting potential accuracy limitations due to adapter design. The video highlights that while functional, this setup is not a substitute for a dedicated 9mm handgun for precision shooting.

Quick Summary

Testing a 9mm round fired from a GForce Arms Filthy Pheasant 12-gauge shotgun using an adapter revealed poor accuracy, with scattered hits and keyholing. A comparison to a 9mm handgun showed the handgun's significantly tighter grouping, concluding the adapter setup is inaccurate and not suitable for precision tasks.

Chapters

  1. 00:00Intro: 9mm in a Shotgun
  2. 00:1312-Gauge to 9mm Adapter
  3. 00:28Technical Observations
  4. 00:47Accuracy Testing
  5. 01:19Firearm Identification
  6. 01:28Results and Handgun Comparison

Frequently Asked Questions

How accurate is a 9mm round fired from a 12-gauge shotgun using an adapter?

Testing showed significant inaccuracy, with scattered hits and potential keyholing on the target. A comparison with a 9mm handgun revealed much tighter groupings, indicating the adapter setup is not suitable for precision shooting.

What firearm was used in the 12-gauge to 9mm shotgun conversion test?

The firearm used was a GForce Arms Filthy Pheasant, identified as a generic over/under 12-gauge model. This shotgun was fitted with a rifled 12-gauge to 9mm adapter to fire the smaller caliber rounds.

What are the potential issues with using a 12-gauge to 9mm shotgun adapter?

Key issues include the adapter's short length, potential for a slight 'wiggle' when seated in the chamber, and the inherent inaccuracy this causes. The rifling is minimal, and the overall setup does not match the precision of a dedicated 9mm handgun.

Does a 9mm round fit directly into a 12-gauge shotgun barrel?

No, a 9mm round will simply fall through a standard 12-gauge shotgun barrel due to the significant difference in diameter. An adapter is required to bridge this size gap and allow the 9mm round to be fired from the shotgun.

More Tactical & Gear Videos You Might Like

More from Civilian Tactical

View all →