Ithaca model 37 12 gauge shotgun self defense / riot style

Published on January 16, 2024
Duration: 8:13

This guide details the process of shortening an Ithaca Model 37 12 gauge shotgun barrel to a legal 18.5 inches for a trench gun or riot gun style build. It covers precise barrel measurement, cutting techniques using a pipe cutter and hacksaw, deburring, filing for a flat crown, and installing a new bead sight. The video also addresses common issues like chatter marks and provides solutions for a functional and aesthetically pleasing result.

Quick Summary

To accurately measure shotgun barrel length for modification, use a dowel rod inserted until it contacts the bolt face. Mark the dowel at the barrel's end, then measure from the bolt face end of the dowel to your mark. This ensures you account for the chamber and receiver.

Chapters

  1. 00:00Introduction & Project Goal
  2. 00:53Measuring Barrel Length Accurately
  3. 01:31Marking the Barrel for Cutting
  4. 02:09Cutting the Barrel with Pipe Cutter & Hacksaw
  5. 02:43Deburring the Barrel End
  6. 03:27Filing for a Flat Barrel Crown
  7. 03:49Drilling and Tapping for Bead Sight
  8. 04:01Addressing Chatter Marks with Sanding & Bluing
  9. 04:16Installing the Bead Sight
  10. 04:25Final Product & Aesthetics

Frequently Asked Questions

How do you accurately measure the barrel length of a shotgun for modification?

To accurately measure shotgun barrel length for modification, use a dowel rod inserted until it contacts the bolt face. Mark the dowel at the barrel's end, then measure from the bolt face end of the dowel to your mark. This ensures you account for the chamber and receiver.

What is the best method for cutting a shotgun barrel for a custom build?

For cutting a shotgun barrel, a pipe cutter is recommended to score a precise line, followed by a hacksaw. This method helps prevent overheating and provides a cleaner cut than rotary tools, minimizing damage to the barrel.

How can I fix chatter marks on a newly cut shotgun barrel?

Chatter marks on a cut barrel can be addressed by lightly sanding the affected area to create a slightly rougher surface. Then, apply a liquid gun bluing agent like Super Blue to touch up the finish and make the marks less noticeable.

What tools are needed to install a bead sight on a shotgun barrel?

Installing a bead sight requires drilling and tapping the barrel. You'll need a drill, a center punch for marking, a tap with the correct thread pitch (e.g., 6-48), and potentially a Dremel tool to trim excess threads on the sight.

Related News

All News →

More Gunsmithing & DIY Videos You Might Like

More from Cranky Gun Reviews

View all →