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Page AR-15 » AR Discussions
AR Sponsor: bravocompany
Posted: 2/1/2011 2:58:52 PM EDT
I need to change my front site post. I believe they are spring loaded. Are there any, "how to" guides or video's? I searched here and google and all I get are how to swap a front site base, which I already know how to do. My current site post got chewed up a little bit and now it has burrs. I was in a pinch for time and used a leather-man on my front BUIS to adjust the height, stupid I know. It was kind of dark on the lane and lets just say I have learned my lesson. I now have a nice small punch pin included in my range bag to make any adjustments now. I appreciate the help guys.
Link Posted: 2/1/2011 3:02:46 PM EDT
[#1]
no manual for your weapon?
Link Posted: 2/1/2011 3:07:56 PM EDT
[#2]
Quoted:
no manual for your weapon?


Sure I have one. I didn't think it would tell me how to replace the site post though.
Link Posted: 2/1/2011 3:16:27 PM EDT
[#3]
unscrew it...

It really is just that simple
Link Posted: 2/1/2011 3:26:26 PM EDT
[#4]
Quoted:
unscrew it...

It really is just that simple


So, when I unscrew it I don't have to worry about any springs flying out? When I install my new one will I have to reset any springs? If it is just as easy as you describe I will be very surprised. Thanks for the help.
Link Posted: 2/1/2011 3:28:13 PM EDT
[#5]
The detent is spring loaded.

Its a detent.....with a spring under it.  The post itself unscrews.

Yes, it really is that easy.
Link Posted: 2/1/2011 3:34:37 PM EDT
[#6]
Just don't turn the weapon upside down. The spring and detent will fall out.
It's easiest to use a sight tool that pushes the detent down to unscrew it.
Dave
Link Posted: 2/1/2011 3:38:53 PM EDT
[#7]
SJT, Marksman14, and Shadowcop, thank you very much. You saved me from searching every youtube video in its archives.
Link Posted: 2/1/2011 3:47:16 PM EDT
[#8]
First part of this only in reverse:

http://www.brownells.com/.aspx/lid=11443/learn/
Link Posted: 2/1/2011 3:59:55 PM EDT
[#9]
I bought some DD barrels assemblies that I like very much.  However, the sight ears are narrow, and the area around the front post has not machined out, so the sight tools I have don't fit.  However, I can use a bullet time or punch to get the job done...
Link Posted: 2/1/2011 4:15:04 PM EDT
[#10]
Quoted:
I bought some DD barrels assemblies that I like very much.  However, the sight ears are narrow, and the area around the front post has not machined out, so the sight tools I have don't fit.  However, I can use a bullet time or punch to get the job done...


I have one like that. I used a Dremel and took a few thousanth's off the diameter of the sight tool.

Link Posted: 2/1/2011 4:16:59 PM EDT
[#11]
This may be a dumb question, but your question makes me think that you might not be mechanically inclined.

The fact that you tore up your current post bad enough to warrant replacement makes me wonder if you forced the post past the detent?  You do understand that you have to depress the detent while simultaneously turning the front sight post?

It sounds dumb, but I've seen worse.
Link Posted: 2/1/2011 4:31:39 PM EDT
[#12]
Quoted:
First part of this only in reverse:

http://www.brownells.com/.aspx/lid=11443/learn/


Perfect, that is exactly what I was looking for.
Link Posted: 2/1/2011 4:35:01 PM EDT
[#13]
Quoted:
This may be a dumb question, but your question makes me think that you might not be mechanically inclined.

The fact that you tore up your current post bad enough to warrant replacement makes me wonder if you forced the post past the detent?  You do understand that you have to depress the detent while simultaneously turning the front sight post?

It sounds dumb, but I've seen worse.


I am mechanically inclined. I built this rifle. No, I didn't force the post past the detent. I used the tip of a bullet to depress the detent while turning the site. It just has some burrs on it and I don't like seeing them while looking down the sites.
Link Posted: 2/1/2011 5:04:14 PM EDT
[#14]
The base of the front sight post should be about level with the shelf of the front sight base in which it sits or approx 5mm from the top of the post to the shelf. That should get you on paper.
Link Posted: 2/1/2011 5:57:48 PM EDT
[#15]
Quoted:
Quoted:
This may be a dumb question, but your question makes me think that you might not be mechanically inclined.

The fact that you tore up your current post bad enough to warrant replacement makes me wonder if you forced the post past the detent?  You do understand that you have to depress the detent while simultaneously turning the front sight post?

It sounds dumb, but I've seen worse.


I am mechanically inclined. I built this rifle. No, I didn't force the post past the detent. I used the tip of a bullet to depress the detent while turning the site. It just has some burrs on it and I don't like seeing them while looking down the sites.


Get a TM-23 and read it
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