Apex gritty.

[SmurfHunter]

Well I installed the full frame portion of the apex shield kit. The USB and springs are not in the slide as I couldn't get the rear sight off. The pull and reset feel great but when the trigger bar engages the current factory sb there is a horrible gritty feel now. Far more noticable then prior to installing the apex sear and springs.

 

[OneJzsupra]

The USB will get rid of the rest of that. Also take not that my trigger bar on my m&p was making slight contact with the slide stop. Slowly pull the trigger back and watch the slide stop and see of it wiggles. I pulled all of my non coated parts out and polished them which helped give it and smooth action. To include my apex sear as well.

 

[SmurfHunter]

The USB will get rid of the rest of that. Also take not that my trigger bar on my m&p was making slight contact with the slide stop. Slowly pull the trigger back and watch the slide stop and see of it wiggles. I pulled all of my non coated parts out and polished them which helped give it and smooth action. To include my apex sear as well.

The slide stop on the shield is completely left of the frame. The trigger bar runs along the right side. I don't see how they could touch.

 

[OneJzsupra]

The slide stop on the shield is completely left of the frame. The trigger bar runs along the right side. I don't see how they could touch.

Ahh, see I've never seen the inside of one or the outside. I was just guessing that it might have been close to the M&P.

I would say that you should either put 500 rounds through or take your run to a smith to install the usb for you. I would however polish the usb before installing.

 

[AwfAxis]

A little 320 grit sand paper right here gets rid of the gritty feeling, no matter if stock or APEX. Takes just a few minutes.

You will see the machine lines in the metal surface. A few thousand trigger pulls gets rid of it, but the sand paper is faster.

 

[Brucenterry]

AwfAxis, would you be able to sent a PM w/ that picture. I can't view it on this site for some reason. Thanks so much.

 

[TahoeDust]

I just tossed my Apex sear into my Shield...my USB will not be here until Tuesday. For now it is super gritty like the OPs. I know it will smooth out once I get the USB in there. My FS with the Apex stuff in it is smooth as butter.

 

[SmurfHunter]

Ahh, see I've never seen the inside of one or the outside. I was just guessing that it might have been close to the M&P.

I would say that you should either put 500 rounds through or take your run to a smith to install the usb for you. I would however polish the usb before installing.

I'm almost at 4500 rounds now. So I assume the natural burs are gone. But I may try to smooth out the trigger bar a hair too

 

[SmurfHunter]

A little 320 grit sand paper right here gets rid of the gritty feeling, no matter if stock or APEX. Takes just a few minutes.

You will see the machine lines in the metal surface. A few thousand trigger pulls gets rid of it, but the sand paper is faster.

How many swips across did you need?

 

[AwfAxis]

How many swips across did you need?

I just kept at it until the surface was mirror smooth. About 3 minutes.

 

[robkarrob]

Test and fix for gritty trigger pull, if you have a burr in the blocker bore:


M&P Pistol Gritty Trigger Pull -- Striker Blocker Fix - YouTube


Bob

 

[OneJzsupra]

I'm almost at 4500 rounds now. So I assume the natural burs are gone. But I may try to smooth out the trigger bar a hair too

I just used a dremel with a felt tip and polished pretty much everything with out finish on it which helped out.

I also used metal polish to go with it.

 

[SmurfHunter]

Test and fix for gritty trigger pull, if you have a burr in the blocker bore:


M&P Pistol Gritty Trigger Pull -- Striker Blocker Fix - YouTube


Bob

What size punch did you use to get the sights off?

 

[robkarrob]

The larger the better. I used a 5/16 inch punch, which is the largest I have. Do not punch on the thin lower lip of the sight. Place the taped punch on the thicker (meaty) upper area of the sight. Keep checking the tape so you don't get metal to metal contact. You may have to pound quite hard to get the sight to move, however some have said their sight moved easily.

Bob

 

[SmurfHunter]

The larger the better. I used a 5/16 inch punch, which is the largest I have. Do not punch on the thin lower lip of the sight. Place the taped punch on the thicker (meaty) upper area of the sight. Keep checking the tape so you don't get metal to metal contact. You may have to pound quite hard to get the sight to move, however some have said their sight moved easily.

Bob

Apprciate the info. My punches are too small. I never touched the lower lip(actual sight lip) didnt want to damage the smooth portion or my slide. Ill have to source the punch and try again

 

[TahoeDust]

Jesus. This thing does not want to move. Anyone have the part number for the S&W factory sight? I have a few more things to try, but this thing may be getting cut off.

 

[Sarg88]

As you read most of the posts on here about the M&P rear sights you'll find that they are on average a complete B*TCH to remove... I wanted to do all my trigger work myself but couldn't get the darn rear sight to budge so I took it down to the lgs and had them use their high dollar sight pusher to just loosen it up for me.

P.S. Fallow the link that Robkarrob put up. I promise you that the gritty feel is in the blocker bore.....

 

[gnystrom]

A little 320 grit sand paper right here gets rid of the gritty feeling, no matter if stock or APEX. Takes just a few minutes.

You will see the machine lines in the metal surface. A few thousand trigger pulls gets rid of it, but the sand paper is faster.

What he said. Try this first, it solved my problem completely.

 

[SmurfHunter]

As you read most of the posts on here about the M&P rear sights you'll find that they are on average a complete B*TCH to remove... I wanted to do all my trigger work myself but couldn't get the darn rear sight to budge so I took it down to the lgs and had them use their high dollar sight pusher to just loosen it up for me.

P.S. Fallow the link that Robkarrob put up. I promise you that the gritty feel is in the blocker bore.....

I watched the video. But unless I can get the sight off it doesn't matter

 

[SmurfHunter]

What he said. Try this first, it solved my problem completely.

Trying this