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Discussion Starter #1 (Edited)
I just purchased the new shield Plus with the Crimson trace red dot.
I own a few performance center Pistols, and I’m very happy with them.

FYI the Crimson trace red dot that comes with this new shield Plus pistol is of very low quality.
I am very disappointed in this optic that Smith and Wesson has chosen for this performance center pistol.
when tightening The optic to the pistol, the red dot stops working, In order for the red dot to stay on you need to leave the screws slightly loose On your gun. I have already given away the Crimson trace read dot. I’m trying to find a higher quality red dot that shares the same mounting screw thread pattern and Mounting foot print. I am currently waiting for Smith and Wesson to e mail A response to my conundrum. I paid $ 899.00 for this firearm including the CT red dot, I’m very nervous of what my final cost Is going to be After I replace the red dot. I wish this new shield plus had the same quality optic as the first Shield optic ready that I purchased 3 years ago.
 

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The 407K/507K is a great choice. If that doesn't do it for you, look for red dots that have Rmsc/Smsc footprint (Swampfox Sentinel, Romeo Zero, Shield/ J-point sights)

Those range from $150 ish for the Romeo, to about $400 for the Shield smsc. I Personally wouldn't get a red dot that did not include "shake awake" like the Holosun or Swampfox, so I would be willing to pay the extra for a red dot that did have that standard
 

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The 407K/507K is a great choice. If that doesn't do it for you, look for red dots that have Rmsc/Smsc footprint (Swampfox Sentinel, Romeo Zero, Shield/ J-point sights)

Those range from $150 ish for the Romeo, to about $400 for the Shield smsc. I Personally wouldn't get a red dot that did not include "shake awake" like the Holosun or Swampfox, so I would be willing to pay the extra for a red dot that did have that standard
Why do people love the shake awake so much?

I've run RMR's on several guns and this will be the 5th year doing so.
I change the batteries once a year and have never had any issues with dead batteries.
The RMR is always on and the Duracell batteries I use are a buck each when bought in quantity of a dozen at several places.
 

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Why do people love the shake awake so much?

I've run RMR's on several guns and this will be the 5th year doing so.
I change the batteries once a year and have never had any issues with dead batteries.
The RMR is always on and the Duracell batteries I use are a buck each when bought in quantity of a dozen at several places.
When I mentioned the shake awake function, I was referring to it being instantly on when detecting motion, as opposed to the red dot optics that one has to manually push on with a button. The last thing I want to have to do with a red dot optic is to have to remember to turn it on, or even have to find the on button first.

If the red dot is one that is constantly on and has a good enough battery that could last say a year, then those are great too. Shake awake, motion detected, stink eye detected, constant on, etc. are all good options, as long as I don't have to be feeling around for the on button before I can use it lol
 

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When I mentioned the shake awake function, I was referring to it being instantly on when detecting motion, as opposed to the red dot optics that one has to manually push on with a button. The last thing I want to have to do with a red dot optic is to have to remember to turn it on, or even have to find the on button first.

If the red dot is one that is constantly on and has a good enough battery that could last say a year, then those are great too. Shake awake, motion detected, stink eye detected, constant on, etc. are all good options, as long as I don't have to be feeling around for the on button before I can use it lol
Thank you.

I just see a lot of people talking about that and can't understand why it's better than always on, but this explanation makes sense.
 

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Is the 407K/507K a direct replacement for the Crimson Trace (no modification needed) on the Shield Plus Performance Edition?
That's actually a really good question. When suggesting the 507k for the shield plus performance, I didn't think of the fact there might need to be modifications made to the slide to fit- I also haven't seen any videos or links tom sites where someone was using a 507k on a shield plus performance, so I'm really not sure.
 

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"I am very disappointed in this optic that Smith and Wesson has chosen for this performance center pistol. "

I am guessing because they already have a business relationship in place for CT via their grips.

I agree there are much better MRDS than CT.
 

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"I am very disappointed in this optic that Smith and Wesson has chosen for this performance center pistol. "

I am guessing because they already have a business relationship in place for CT via their grips.

I agree there are much better MRDS than CT.
S&W owns Crimson Trace.



I learned years ago that the factory cut for optics is a bad idea, I have all of mine milled for the sight I want to use.
 

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Discussion Starter #11
Is the 407K/507K a direct replacement for the Crimson Trace (no modification needed) on the Shield Plus Performance Edition?
The 507K doesn’t mount to the Shield Plus, is there a plate or something to allow it to fit Properly ?
thanks for the help
 

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Holosun 407/507k is the best micro optic. Go with that.
So can you put it on the optics cut Shield Plus and have everything line up properly? In other words if I don't like the CT when I get my pistol I might consider selling it and going with the Holosun. Also is there a particular model you would recommend?
 

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So can you put it on the optics cut Shield Plus and have everything line up properly? In other words if I don't like the CT when I get my pistol I might consider selling it and going with the Holosun. Also is there a particular model you would recommend?
If if recall you have to modify the slide for the China sight to fit the shield plus (remove the rear lugs off the slide).

Those that say it is "the best", I would wager have zero experience with anything else.
 

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What would you suggest?
If you bought a factory cut slide, I believe you're stuck with the J-Point optic foot print. I wouldn't recommend anything within that footprint.


If you were smart and bought a non factory cut slide, you could buy a Trijicon RMRcc and have the slide milled to fit. These are not cheap, but what is your life actually worth?
 

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I do agree on the lesser quality of the CT dot that comes on the pistol. The reflection in the lens is terrible. The Holosun 407/507k do not fit unless you want to grind off the rear mounting tabs on the slide. The Holosuns only have 2 mounting holes in the front of the optic, but the slide has 4. Any Shield optics or JP. I have the shield SMSc and sent it to them in Britain for the glass upgrade. I feel this is stronger than the RMSc because of the cutouts on the side of the optic, I've seen them dropped and the diagonal side support folded over and destroyed the optic. I think the RMRsc has the same footprint, as does the new Springfield Wasp micro optic. The Sig Romeo Zero's footprint will work, however I am not sure if the adjustment range will allow you to zero the dot. I bought a Romeo Zero for my hellcat osp...it fit, but sat too high on the slide and couldn't come close to zeroing the elevation...you would need to find some sort of shim to angle the optic down...not sure on the S&W. I personally replaced the CT with a Holosun 507k and filed off the rear mounting tabs, and reused the CT mounting screws. It's been holding zero. If that helps.
 

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I reached out to CHWPS on their shield plate for the 507k fitting the shield plus and they said it fit. I ordered it just from a low-modification perspective (i wasnt sure if just grinding the rear lugs off with no coating would end up with corrosion problems later).
This is it S&W M&P® 2.0 SHIELD to Holosun 407K / 507K - C&H Precision Weapons it does fit - but works like a spacer, a few things...
  • there are no lugs, just the attachment screws (would they shear over time)
  • there is no gap or plate overlap (nice fit - good specs)
  • I dont need to re-coat anything
I'll need to run it and see if it holds zero with just the screws (the plate covers all 4 lugs on the RMSc footprint)
 

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I reached out to CHWPS on their shield plate for the 507k fitting the shield plus and they said it fit. I ordered it just from a low-modification perspective (i wasnt sure if just grinding the rear lugs off with no coating would end up with corrosion problems later).
This is it S&W M&P® 2.0 SHIELD to Holosun 407K / 507K - C&H Precision Weapons it does fit - but works like a spacer, a few things...
  • there are no lugs, just the attachment screws (would they shear over time)
  • there is no gap or plate overlap (nice fit - good specs)
  • I dont need to re-coat anything
I'll need to run it and see if it holds zero with just the screws (the plate covers all 4 lugs on the RMSc footprint)
Great that the 507k "fits" but does it sit low enough (like the Crimson Trace) to allow co-witness with the standard iridium front and rear sights on the Shield 9mm 2.0 PC?
 
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