The Firing Line Forums

Go Back   The Firing Line Forums > The Hide > The Art of the Rifle: Semi-automatics

Reply
 
Thread Tools Search this Thread
Old August 7, 2021, 05:24 AM   #1
Doug Lee
Member
 
Join Date: November 25, 2013
Location: S.E. Virginia
Posts: 69
M1 Garand rear sight aperture

Hello All,
While field stripping my M1 Garand yesterday, I noticed that the rear sight aperture does not retract below the plane of the rear sight housing bars (not sure what the bars on each side of the aperture are called) I assume to protect the aperture. I noticed this when I placed the rifle on its sights, on a hard surface, it will rock, should the rear aperture retract lower?
Thanks,
Doug
Attached Images
File Type: jpg M1_Rear_Sight2.jpg (680.9 KB, 73 views)

Last edited by Doug Lee; August 7, 2021 at 06:16 AM.
Doug Lee is offline  
Old August 7, 2021, 06:27 AM   #2
mehavey
Senior Member
 
Join Date: June 17, 2010
Location: Virginia
Posts: 6,137
The sight aperture is actually the top of a curved metal structure.
https://encrypted-tbn0.gstatic.com/i...eIdQQ&usqp=CAU
The other end of that structure has bottomed out -- as per design.
mehavey is offline  
Old August 7, 2021, 06:38 AM   #3
Doug Lee
Member
 
Join Date: November 25, 2013
Location: S.E. Virginia
Posts: 69
Thanks for the response.
Is the retracted position supposed to allow the aperture to "stick up" above the rear sight bars on left and right of the rear sight aperture?
Thanks
Doug
*
Doug Lee is offline  
Old August 7, 2021, 10:40 AM   #4
burrhead
Senior Member
 
Join Date: July 6, 1999
Location: Chihuahuan desert, Texas
Posts: 1,119
Your rear sight appears bottomed out to me. Here's a pretty good link to sighting in an M1.

https://myplace.frontier.com/~aleccorapinski/id23.html
__________________
Join the NRA and the TSRA

I'm offended by people that are easily offended.
burrhead is offline  
Old August 7, 2021, 12:36 PM   #5
bamaranger
Senior Member
 
Join Date: October 9, 2009
Location: North Alabama
Posts: 7,567
sights

Your sight looks correct to me, but I went and checked my (2) rifles as well. When "fully retracted" the aperture still is slightly above the level of the protective ears of the rear sight assembly. A straight edge placed across the ears will "rock".

From a design standpoint, another 1/8" of an inch or less of height on the ears would indeed protect the aperture more fully if the sight were bottomed out prior field strip. As is, the sights are still dang durable and thought to be best of the era for a battle rifle.

I'm reluctant to be critical of the "greatest battle implement ever devised".
bamaranger is offline  
Old August 7, 2021, 12:56 PM   #6
tangolima
Senior Member
 
Join Date: September 28, 2013
Posts: 2,497
The sight is mos certainly not full retracted in real use. It is about 9 clicks up for 100yd zero. The ears provide some protection, but not total protection, in the field.

M1 is a great rifle. But greatest could be too high a bar to reach.

-TL

Sent from my SM-N960U using Tapatalk
tangolima is online now  
Old August 7, 2021, 01:24 PM   #7
44 AMP
Staff
 
Join Date: March 11, 2006
Location: Upper US
Posts: 24,273
Quote:
I'm reluctant to be critical of the "greatest battle implement ever devised".
The quote from Gen Patton left out the word, "yet"...

And there was plenty to be critical of even in Patton's day. However, over all, its a good rifle, and was better than anything anyone else fielded at the time.

But its not without faults. One big one was the Army's fault.
__________________
All else being equal (and it almost never is) bigger bullets tend to work better.
44 AMP is offline  
Old August 7, 2021, 01:45 PM   #8
hps1
Senior Member
 
Join Date: May 26, 2002
Location: Texas
Posts: 423
Quote:
M1 is a great rifle. But greatest could be too high a bar to reach.
Perhaps, but bear in mind the rifle was adapted 85 years ago.

Quote:
On January 9, 1936, the "U.S. Rifle, Caliber.30 M1" was adopted by the Army as its new battle rifle.
Regards,
hps
__________________
Gun Owners note: The Second Amendment is not about hunting! Join NRA @: http://membership.nrahq.org/
hps1 is offline  
Old August 7, 2021, 04:45 PM   #9
Doug Lee
Member
 
Join Date: November 25, 2013
Location: S.E. Virginia
Posts: 69
Thanks all for the feedback, I understand now!
Doug
*
Doug Lee is offline  
Old August 8, 2021, 09:33 AM   #10
shafter
Senior Member
 
Join Date: December 23, 2009
Posts: 1,558
I just checked mine and yours looks to be fully retracted.
shafter is offline  
Old August 8, 2021, 06:58 PM   #11
Doug Lee
Member
 
Join Date: November 25, 2013
Location: S.E. Virginia
Posts: 69
M1 Garand rear sight

Thanks for looking shafter, I thought it might retract below the rear sight ears.
Doug
Doug Lee is offline  
Old August 15, 2021, 06:31 PM   #12
Reloadron
Senior Member
 
Join Date: June 8, 2016
Location: Cleveland, Ohio Suburbs
Posts: 1,675
Yours looks fine to me. They do not go below the protective ears. If you open it up the guts look a little like a rack and pinion.





The parts do vary from revision to revision and manufacturer. If I recall correctly the Winchester manufacture had a thicker aperture than other manufacturers. Shoot it and enjoy it, they work fine and last a long time.

Ton
Reloadron is offline  
Old September 9, 2021, 09:43 PM   #13
akinswi
Senior Member
 
Join Date: October 14, 2012
Location: Bowling Green, Ky
Posts: 163
Do you recommend using a grease to cut down on wear? or no lubricant at all
akinswi is offline  
Old September 9, 2021, 11:16 PM   #14
mehavey
Senior Member
 
Join Date: June 17, 2010
Location: Virginia
Posts: 6,137
Light application of just about any auto bearing grease will do.
(Nothing fancy or dramatically applied.)
mehavey is offline  
Old September 11, 2021, 03:45 AM   #15
Doug Lee
Member
 
Join Date: November 25, 2013
Location: S.E. Virginia
Posts: 69
M1 Garand rear sight aperature

Thanks all for the replies!
Doug Lee is offline  
Old September 11, 2021, 03:07 PM   #16
Unclenick
Staff
 
Join Date: March 4, 2005
Location: Ohio
Posts: 19,281
If you look at the bottom end of the arched rack, you see a short length where there are no teeth cut into it. That was to stop soldiers from accidentally (either in the heat of battle or just fiddling around) from cranking the elevation up so high that the sight fell out and got lost. However, In converting the sight to match use, the peep was drilled out and a small rotating hood and spring detent set into it that would change the elevation ½ moa so you could adjust the sights between the full-moa clicks on the elevation knob. That rotating hood had an unfortunate propensity to fall off during a match, so a lot of match gun's sights had that whole toothless portion of the rack ground off completely so a failed rack could be removed and replaced without taking anything else apart (though your elevation zero would probably be off a little when you did that).

Removing the sight cover (the stamped spring steel retainer) is so easy, I don't see a real advantage to that grinding. The one thing you lose by grinding the sight base is the standard range of 11-13 moa up from the bottom for a 200-yard zero (200 being the shortest range standard target on the National Match Course and also a good point-blank zero range). Nonetheless, if you keep your gun is a soft case or otherwise anticipate conditions in which the sight could get dinged and just want to get it to go down a little further, you can either grind that toothless portion off like a match site or you can just trim some of it as shown in the modification I made to Ron's image, below.

Attached Images
File Type: gif Sight Base Modification.gif (113.3 KB, 129 views)
__________________
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member and Golden Eagle
Unclenick is offline  
Old September 11, 2021, 04:21 PM   #17
Reloadron
Senior Member
 
Join Date: June 8, 2016
Location: Cleveland, Ohio Suburbs
Posts: 1,675
Below is an example of what Unclenick describes where a rear site is converted from 1.0 MOA clicks to 0.5 MOA by rotating the rear site hooded aperture.



In this case the entire rear sight is swapped for a NM/2A which also allows for 0.5 MOA windage clicks. The match rear sight is often complimented with a NM front sight with a 0.062 blade diameter.

Just the hooded aperture can be swapped out with a standard rear site base.



Been years since I have seen any on a Garand. The images are of one of my old Garand rifles.

Ron
Reloadron is offline  
Old October 6, 2021, 07:11 AM   #18
Doug Lee
Member
 
Join Date: November 25, 2013
Location: S.E. Virginia
Posts: 69
Thanks all for the replies!
Doug
*
Doug Lee is offline  
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:47 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2021 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Page generated in 0.04946 seconds with 9 queries