Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
Armory Sponsor
5/10/2010 2:24:55 PM EDT
The biggest thing I don't like about my m1 is the non lockbar rear sight. I've seen whole sights as well as just the knobs and lockbar. If I change it out do I need the whole sight or can I just add the lockbar assembly to my rifle? Sure, it won't be correct but with a 1942 receiver, 1950 barrel and new stock I might as well make it the way I want it. At least I'm not sporterizing it.
5/10/2010 3:51:03 PM EDT
[#1]
You can use the base, just so you know they are not as easy to adjust
5/10/2010 4:32:08 PM EDT
[#2]
To add the lockbar you need both the WWII elevation knob and the WWII lockbar windage knob.  The rest is common to both.
5/10/2010 4:57:35 PM EDT
[#3]
The old lock-bar sights were changed for a reason.

Folks not keeping them tight and the sight settings shifting.
5/10/2010 9:27:20 PM EDT
[#4]
I have a Springfield shooter that I want to put back to wartime configuration so I just bought a new made lock bar assy - both knobs and cross shaft - from Sarco for $40 or so.  I is blued.  
I couildn't justify the $125 - $140 being asked for an original!
Haven't installed it yet, but I don't know why I should have a problem.  Since I'm not going to be knocking it around int the mud & brush I don't expect any problem with keeping it tight.  Especially so since I'll know to check it occasionaly.
Sarge
5/10/2010 9:56:05 PM EDT
[#5]
Quoted:
I have a Springfield shooter that I want to put back to wartime configuration so I just bought a new made lock bar assy - both knobs and cross shaft - from Sarco for $40 or so.  I is blued.  
I couildn't justify the $125 - $140 being asked for an original!
Haven't installed it yet, but I don't know why I should have a problem.  Since I'm not going to be knocking it around int the mud & brush I don't expect any problem with keeping it tight.  Especially so since I'll know to check it occasionaly.
Sarge


Thanks for the tip. Figured while original parts are great, the rifle's not original anyway, maybe I'll get one of those. My rifle's not due to be up against Germans and Japanese anytime soon, so if I forget to watch the tightness I'll just miss a piece of cardboard. I have a good backstop so that's not a problem.
5/11/2010 2:19:40 AM EDT
[#6]
My brand new M1A (bought in 1978) came with lockbar sights.  I knew it was different than my M14 but didn't have a clue why at that time.

Those lockbar sights stayed on the M1A till last year when I took them off and put them on my Dec. '44 SA M1 Garand.  They never came loose, never changed settings, I never had a problem wieht them.  If its really a habit (loosening, adjusting, re-tightning) then you won't forget.

Try them and see if you like them.

The lockbar was solution to the ealier sight adjustment mechanism that would change adjustment while firing.  SA couldn't figure out why and developed the lockbar to "fix it".  Later (near the end of the war they figured out how to make a set of rear sights that would hold the adjustment without the locking mechanism and went back to that style of knobs.

When target shooting you have time to adjust/play with the knobs.  When rapid firing on multiple targets at varying ranges you adjust the sight picture to compensate for the varying ranges.  At least that's why I do.  Aim lower up close, aim higher farther out (how high/low depends on the range).
Armory Sponsor