Brownells - Installing a main spring housing/mag well on a 1911

Published on April 17, 2010
Duration: 1:57

This video demonstrates the process of installing an aftermarket mainspring housing and mag well on a 1911 pistol. It covers the necessary tools, removal of the old housing, disassembly of internal components, reassembly into the new housing, and final installation into the firearm. The presenter emphasizes the importance of salvaging internal parts and notes that minor fitting may occasionally be required.

Quick Summary

To install a 1911 mainspring housing or mag well, you need a 3/16" punch, a 1/4" punch for spring compression, a 1/16" punch for the cap pin, and a padded vise. Internal parts must be transferred from the old housing, and final checks ensure proper function.

Chapters

  1. 00:00Introduction to 1911 Customization
  2. 00:20Required Tools for Installation
  3. 00:43Removing the Old Mainspring Housing
  4. 01:00Disassembling Internal Components
  5. 01:18Reassembly and Installation Steps
  6. 01:49Final Checks and Fitting

Frequently Asked Questions

What tools are needed to install a 1911 mainspring housing or mag well?

You'll need a 3/16" punch or Brownells mainspring housing pin pusher, a 1/4" punch for spring compression, a 1/16" punch for the cap pin, and a bench vise with padded jaws for safe and effective installation.

Do new 1911 mainspring housings come with internal parts?

Typically, new mainspring housings do not include internal parts like the cap, spring, cap pin, and retainer. These essential components must be carefully salvaged from your old housing for reuse in the new one.

What are the key steps for installing a 1911 mag well?

Install the mag well by first transferring internal parts to the new housing, then compress the assembly and replace the cap pin. Insert the housing into the frame, ensuring the hammer strut aligns with the cap cup and the sear spring is seated.

Can a 1911 mainspring housing require fitting?

While most aftermarket mainspring housings are designed as 'drop-in' parts, some specific combinations of pistol frames and aftermarket parts may require minor fitting adjustments for a perfect fit and function.

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