Prototype Optic on an M1 Garand

Published on April 9, 2015
Duration: 5:08

This guide details the installation and adjustment of a rare, experimental optic designed for the M1 Garand, presented by Ian McCollum of Forgotten Weapons. The optic replaces the standard rear sight and features a 1x magnification, short eye relief, and European-inspired internal adjustment mechanisms. It includes elevation adjustment up to 1000 yards and windage adjustment of approximately 14 MOA. Viewers are encouraged to share any information about this unique prototype.

Quick Summary

This experimental optic for the M1 Garand is a 1x non-magnifying sight replacing the rear iron sight. It features internal reticle adjustments, elevation markings up to 1000 yards, and approximately 14 MOA windage adjustment, drawing design parallels to older European optics.

Chapters

  1. 00:00Introduction: Rare M1 Garand Optic
  2. 00:54Optic Overview: 1x Magnification, Rear Sight Replacement
  3. 01:37Mechanical Adjustments: Internal Reticle System
  4. 02:31Reticle and Field of View Analysis
  5. 03:10Technical Details: Elevation, Windage, Flash Hider
  6. 04:26Conclusion and Call for Information

Frequently Asked Questions

What is unique about the experimental optic on this M1 Garand?

This experimental optic is a 1x non-magnifying sight that replaces the rear iron sight. It features internal reticle adjustments, similar to older European designs, and has elevation markings up to 1000 yards and windage adjustment.

How are the adjustments made on this M1 Garand optic?

The optic uses gear-like knobs to move the reticle internally. The elevation knob is marked from 0 to 1000 yards for bullet drop compensation, and the windage knob provides approximately 14 MOA of adjustment.

What historical context is provided for this M1 Garand optic?

Ian McCollum notes that the US Army experimented with optics in the 1950s-60s. This specific prototype lacks external markings and documentation but resembles German ZF41 optics in its design principles.

Where can one find more information or potentially bid on this M1 Garand prototype?

The rifle featuring this experimental optic was available for bidding at Rock Island Auction. Ian McCollum also encourages viewers with more information to share their knowledge.

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