fmiller

replace M&P sights -- DIY or gunsmith?

14 posts in this topic

My M&P CORE shoots about 9 inches high with the standard sights.

 

I'd like to use the gun for shooting Production, so using a red dot is out.

 

I'll likely get some Dawson sights, but was wondering if it's a good idea or not to install myself.

 

It LOOKS pretty straightforward on youtube... but I'd rather not buy anything twice...

 

What do you think?

Share this post


Link to post
Share on other sites

Just watch his videos a few times and if you have the tools, do it!

Share this post


Link to post
Share on other sites

Yeah, easy enough to do yourself.  Just take it slow - when you get close, the difference between not fitting and sliding right in is not very far apart.

Share this post


Link to post
Share on other sites

Drifted my factory sights out with a bronze punch.

Drifted an Ameriglo rear and Dawson front in, no fitting.

I should've touched the Dawson a bit with a file, woul've gone easier.

Look out for the plunger disc and spring under the rear.

Share this post


Link to post
Share on other sites

Brass or bronze punch for the win. Works great!

Share this post


Link to post
Share on other sites

Just did this on my core about a month ago. My sight pusher had to go in at a angle to push out the rear sight. The front sight was very stiff coming out once it popped loose it came right out. I went with the Dawson sights had to file the front sight about 2 strokes and it pressed right in. The rear went right in no fitting. It cured my POI problem. Dawson garuntees the right POI they will trade sights till it is right. If you have done sight changes before you will not have a problem. If not ask around someone will help you or your smith can fix you up. 

Share this post


Link to post
Share on other sites

This is great - thanks!

 

So... inevitable follow-up question - do any of you own sight-pushers?

 

The price range (50 to 400) is pretty extreme...  but then tapping with a hammer doesn't seem conducive to precise adjustments...

 

(and no one seems to make an adjustable rear sight for the CORE)

 

f

 

Share this post


Link to post
Share on other sites

As far as the front Dawson sights, file/stone till you can slide it without force half way on, then use drift punch, either the included aluminum one or a heftier brass punch to set silght in middle of slide dovetail. I ground a flat bottom to my brass punch, so more surface area meets the side of sight.

The rear sight is trickier. Fitting is no problem but adjusting is a bit tedious. Easy to move more than is wanted with a hammer and punch. No big deal, as long as you know where you want sight to end up in dovetail. I use a micrometer to measure distance from side of slide to side of sight, in a horizontal plane, using the depth gauge bar sticking out of bottom of micrometer, if all that makes sense. Brownell's has a formula for sight adjustment as I think does Dawson as well.

Have a MGW sight pusher made for Glocks, does not work well for M&P in my limited trials. Not really needed for the 2 M&Ps I have replaced sights on.

Mark

Share this post


Link to post
Share on other sites

No need for a pusher.  Just use a brass or aluminum drift.  Dont be afraid to hit it.  Center the sight up in the slide and go shoot it.  Adjust if needed.

 

I wonder if Dawson plans on making the adjustable rear sights again for the M&Ps?  

Share this post


Link to post
Share on other sites
On 3/16/2017 at 10:56 AM, Kaldor said:

 

 

I wonder if Dawson plans on making the adjustable rear sights again for the M&Ps?  

I asked that of Dawson rep a few months ago, he said they are after the boss to do that, as many customers are asking for it, but he has other projects he is working on.

 

Share this post


Link to post
Share on other sites

I did mine last year and I definitely think this is something you can do yourself.  I just used a brass punch.  Like everyone said, take it slow.  At least for me, it seemed like I wasn't getting anywhere (taking it slow) and then a few more times with the file and it was almost to the half way point.  The triangle shaped file worked the best for me to keep the all the edges even.  Good luck

Share this post


Link to post
Share on other sites
On 3/17/2017 at 3:32 PM, mpom said:

I asked that of Dawson rep a few months ago, he said they are after the boss to do that, as many customers are asking for it, but he has other projects he is working on.

 

 

I have a set already.  Terrific sights, but I have a friend who has an M&P that is looking to replace the sights on his.

Share this post


Link to post
Share on other sites
10 hours ago, Kaldor said:

 

I have a set already.  Terrific sights, but I have a friend who has an M&P that is looking to replace the sights on his.

Did you buy the set recently? Have not seen that on the website.

Mark

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now