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PC9 Sight Recommendations

This is a discussion on PC9 Sight Recommendations within the Ruger Semi-Auto forums, part of the Rifle & Shotgun Forum category; I just bought a Carbine model 19116 and absolutely love the gun so far. I am looking to put a sight on it and was ...


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Old December 6th, 2019, 03:18 PM   #1
 
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PC9 Sight Recommendations

I just bought a Carbine model 19116 and absolutely love the gun so far. I am looking to put a sight on it and was looking at the Vortex Strike Fire and other Reflex sights. Any suggestions from carbine owners will be appreciated. Also i'm assuming I might need to raise the site up to see over the front site.



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Old December 6th, 2019, 04:17 PM   #2
 
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I like to keep red dot low on pcc helps with cheek weld,
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Old December 6th, 2019, 05:33 PM   #3
 
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I put an inexpensive Bushnell TRS 25 on mine and am pleased with the results. Could`ve spent much more $$$ on a more expensive optic but instead used the money saved for ammo (which you`ll go through at an alarming rate)

There are, of course, better optics out there and your budget will guide you to whichever way you want (need?) to go. It would be easy to spend as much or more on an optic that costs more than your Ruger in the first place but this is just something you need to figure out on your own.

At $119, the TRS 25 does what I expected it to do, perhaps even better actually. No problems thus far with it since I just use it for plinking at the range but be forewarned, if anyone else is at the range with you and they see it, you may as well give them a magazine full and let them have at it
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Old December 6th, 2019, 06:40 PM   #4
 
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Ditto on the TRS-25. I bought two off of Amazon for around sixty bucks each. With the taller mount you can also use the irons.
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Old December 7th, 2019, 09:22 AM   #5
 
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You should also consider 1x3, 1x6, 1x8 scopes. i use a Weaver V-3 1-3X20 scope mounted low I can see sights at 1x sights are gone at 3 x. Vortex and others make similar scopes some with illumination. Get scope and a red dot you can switch around and have a lot of fun.
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Old December 7th, 2019, 02:55 PM   #6
 
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Mine is the Chassis 19122 model, so I started with no sighting system at all. I chose the Sig Romeo 5 and began with the low mount. Worked fine, though I had to really jam my cheek weld to see through the center of the lens. I then added the Sig Juliet 3 magnifier but had to go to the high mount. Very happy with this setup.
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Old December 11th, 2019, 05:57 PM   #7
 
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My 3X scope

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Old December 11th, 2019, 07:28 PM   #8
 
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Sixpackabs

I like the mods you did. Im assuming your a Lefty. My son is a Lefty as well And i find it so hard to get lefty rifles for him. Even Ruger seemed to stop making the American standard in LH models.


So Far I'm leaning towards the Vortex or the Romeo sight, but still up in the air. I have the Vortex on one of my AR's and really like it.
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Old December 27th, 2019, 12:18 AM   #9
 
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I have a 19122 with this rather nice green dot sight from Holosun (HE515CM-GR). I understand that Holosun manufactures SIG optics. I like the way it mounts, has an auto wake and solar circuitry that backs up the battery as well as senses ambient light levels for auto-brightness control. I think the green LED reticle is a little sharper than red dots for my eyes. The acquisition is rapid and it holds zero well.
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Old December 27th, 2019, 09:43 AM   #10
 
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I use the Sig Romeo 5 red dot on mine.
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Old January 7th, 2020, 07:26 AM   #11
 
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I just bought the Ruger PC9 chassis model with the hand rail and collapsible stock. I haven't receive it yet. It has no iron sites on it. I just ordered a Sig Sauer Romeo 5 xdr. It is supposed to come with a low mount and a absolute co-witness mount. Which one am I supposed to use and where should I mount the red dot? By the way, I bought red to at the Bereli for $149.99. Best price I found.
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Old January 7th, 2020, 08:07 AM   #12
 
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The SIG Romeo 5 comes with a low mount and a high riser to provide for an exact co-witness with standard AR sights that mount at an axis about 1.41" above the top of the Picatinny rail.

The SIG Romeo 5 xdr is different. The xdr has the option of a simple 2 MOA dot reticle, or a circle-dot reticle akin the that of an EOTech sight that allows for rapid target acquisition. But instead of using a button battery like most reflex red dot sights, the Romeo 5 xdr is powered by a single AAA battery. The battery compartment is beneath the body of the optic so the xdr cannot be mounted as low as the regular Romeo 5.

The Romeo 5 xdr comes with a riser mount that will position the optic the same height above the rail as the high riser that comes with the Romeo 5. But it also comes with a thin spacer that can be used to position the optic slightly higher (more like 1.64" instead of 1.41" above the rail) to provide for a lower 1/3 co-witness with standard AR sights.

Since you are not using AR sights on the PCC you can mount the xdr at either height and the difference will be less than a quarter inch between the two. I would probably use the lower mounting height (without the spacer) to keep the sight axis to bore offset as small as possible.

As for where to mount the red dot, that is a matter of personal preference. Red dot sights are not limited by eye relief issues like rifle scopes are, so you can place it anywhere on the Picatinny rail that is milled into the receiver top, or even on the short Picatinny rail segment that is mounted on the rear of the barrel.

Since this is a take-down carbine and is potentially subject to accuracy issues as a result of the barrel to receiver fit, mounting the red dot on the barrel itself might provide for more consistency and accuracy than mounting it on the receiver. Or it might not.
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Old January 7th, 2020, 03:50 PM   #13
 
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Doesn't co-witness require a front and back sites? The chassis model doesn't come with any so what is going to co-witness ?

Sent from my GM1915 using Tapatalk
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Old January 7th, 2020, 05:17 PM   #14
 
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Thanks pblanc!
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Old January 8th, 2020, 06:12 AM   #15
 
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Quote:
Originally Posted by gixxerdude1969 View Post
Doesn't co-witness require a front and back sites? The chassis model doesn't come with any so what is going to co-witness ?

Sent from my GM1915 using Tapatalk
I tried to mount flip-up sights designed for an AR on my PCC equipped with a Midwest Industries free-float M-LOK hand guard without success. Here are the problems I ran into.

I first tried a Magpul MBUS flip-up rear sight mounted on the Picatinny rail that is integral to the receiver. That did not work at all. The Magpul MBUS could not be deployed from a stowed position because there was insufficient clearance between the top of the Pic rail and the top of the receiver. To release the MBUS sight from the stowed position, one presses a tab on the sight and a part of the sight body pivots downward. When doing so, the sight hit the top of the receiver before releasing.

The proprietary flip-up rear sight that comes with the Ruger AR556 releases by a different mechanism with a push button on the side. Nothing pivots down so this sight will work on the PCC receiver Pic rail. So far, so good.

I next tried mounting a Magpul MBUS flip-up front sight on the front of the Midwest Industries hand guard. This requires mounting a short Picatinny rail segment into one of the M-LOK slots. The problem with that is the top of the Picatinny rail segment on the front of the hand guard was higher than the top of the Picatinny rail on the receiver so the front sight and rear sight were not aligned on the same axis and therefore could not be zeroed.

Once again, this was with the MI aluminum hand guard. The Ruger aluminum hand guard might be different but just looking at the photos I think you will encounter the same problem. I suspect that it would be possible to mount some type of front sight that would work with one mounted on the receiver Pic rail, but it might require filing down the front sight post, or possibly finding a front sight that mounts directly into an M-LOK slot rather than on a Picatinny rail, but that might require an extra-long front sight post. Or possibly you could modify a front sight designed to mount on a Pic rail to attach directly to the top of the hand guard.

The chassis model does appear to have a short Pic rail segment mounted on top of the barrel where the rear sight would ordinarily be on the standard PCC and it looks as if the top of that rail segment is aligned with the top of the Pic rail on the receiver. So one might be able to mount a flip-up front sight there. But you would have to accept an awfully short sight radius.

Last edited by pblanc; January 8th, 2020 at 06:27 AM.
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