1939 mossberg 51 semi auto 22

Published on November 1, 2022
Duration: 1:02

This guide details the stock restoration process for a 1939 Mossberg 51 semi-automatic .22 rifle, including sanding to 900 grit and applying Tru-Oil. It also covers adjusting the rear spring tensioner for different ammunition types, a crucial step for reliable cycling. The video highlights the rifle's unique buttstock feeding system and color-coded safety.

Quick Summary

The 1939 Mossberg 51 is a rare .22 semi-automatic rifle known for its unique buttstock-fed magazine and adjustable spring tensioner. Restoration involves sanding the stock to 900 grit and applying Tru-Oil. Proper adjustment of the rear spring tensioner is crucial for reliable cycling with varying .22LR ammunition power levels.

Chapters

  1. 00:00Introduction and Rarity
  2. 00:13Safety and Operation
  3. 00:26Spring Tensioner Adjustment
  4. 00:35Condition and Sights
  5. 00:45Acquisition and Restoration

Frequently Asked Questions

What makes the 1939 Mossberg 51 rifle unique?

The 1939 Mossberg 51 is unique for its short production run, lasting only one year before being replaced by the 51M. It also features a distinctive buttstock-fed tubular magazine and a rear spring tensioner for ammunition adjustment.

How do you adjust the spring tensioner on a Mossberg 51?

The spring tensioner is located at the rear of the receiver. It should be adjusted based on the power of the .22LR ammunition being used; tighten it for weaker loads and loosen it for high-velocity loads to ensure reliable cycling.

What is the recommended method for restoring the stock of a Mossberg 51?

The video suggests sanding the stock progressively through grits up to 900, followed by applying multiple thin coats of Tru-Oil. Light sanding between coats helps achieve a smooth, durable finish.

What safety features does the Mossberg 51 have?

The Mossberg 51 features a color-coded safety selector, typically indicated by green for 'safe' and red for 'fire', providing a clear visual cue for the firearm's status.

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