Installing National Match sights m1a

[tacticalpanda]

I just received my NM sights for my M1A. I want to install them but can't find a guide on the NM. I've read there is a spring and ball bearing to be used but am not 100% sure on installation. Does anyone have a link showing how to correctly install these?

 

[Sweeney]

It depends which type you have. There are those that have a finer pitch windage thread and those with the ball detent. The detent essentially provides a half way point between the standard windage settings. The ball detent requires a hole to be drilled into the receiver for the spring and ball. The knob will require spots for the ball the engage.

This is from memory...or lack there of...

Where did you get the NM rear sight?

 

[mac1911]

I just received my NM sights for my M1A. I want to install them but can't find a guide on the NM. I've read there is a spring and ball bearing to be used but am not 100% sure on installation. Does anyone have a link showing how to correctly install these?

http://www.fulton-armory.com/\faqs\M14-FAQs\NMRearSight.htm may help a little?

this will help also https://www.youtube.com/watch?v=AoK9Zxk38_U

 

[Coyote33]

Are the instructions similar at all for the AR-15 sights?

sight question

 

[Sweeney]

Are the instructions similar at all for the AR-15 sights?

sight question

Very different animals. Depending on the type of M14 NM rear sight you either replace the entire rear sight assembly or you need to drill the receiver for the ball detent type.

 

[mac1911]

I just received my NM sights for my M1A. I want to install them but can't find a guide on the NM. I've read there is a spring and ball bearing to be used but am not 100% sure on installation. Does anyone have a link showing how to correctly install these?

which NM set up did you buy. The only ball bearing spring that I know of is in the hood assembly. thats where your 1/2 MOA for elevation comes from. there was a serated disc that used to install between the adjusting dial and reciever?

 

[tacticalpanda]

Thanks saw the video was helpful but that's the only one I could find.

The ones I bought were the springfield NM sights.

http://www.midwayusa.com/product/116391/springfield-armory-m1a-match-sight-kit

Checked my receiver before I bought and it is already drilled for the windage for the ball bearing part.

 

[Sweeney]

Hear you go...

http://m14forum.com/reference/86160...ssembly-disassembly-adjustment-pic-heavy.html

 

[mac1911]

http://www.civilianmarksmanship.com/striphtml/detailstripsightone.html
maybe help some also.
so what is the purpose of a detent? is this a design that allows them to use the GI pinion and thread pitch ? vs machining the pinion with the pitch for 1/2moa?

 

[mac1911]

Hear you go...

http://m14forum.com/reference/86160...ssembly-disassembly-adjustment-pic-heavy.html

read post 15 answered my question...... so if the spring and ball like to go fling I would you try assembly under a large plastic bag.....super clean work space and a magnet.....