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Trijicon SRO or Aimpoint CompM5s for BM4


Mberlin74

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Thanks for all the great info on this forum. I’ve been lurking about here for ages gathering info for my BM4 which I finally picked up. 
I’ve been on a mission to start gathering some of the parts I’d like to mod it with and I’m really having a rough time making a decision over these two optics. If there are any of you out there with real world experience on either of these optics coupled with your BM4, I’d really appreciate any feedback, comments or suggestions. 

Thanks in advance

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1 hour ago, rubicon20032003 said:

H2 or T2 

Looking at the Aimpoint T2. I guess my only real concern is the weight difference and my peripheral view. Do you or does anyone notice a huge difference when looking through the smaller SRO versus the bigger and bulkier T2? Or is this a moot point?

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32 minutes ago, Milspec said:

That’s a good price.  Where did you score that?

Bullseye North in London Ontario. 15% off plus it was the last one which was open box. Got more off for that too. It was a model that came with no base mount which was perfect for me as I didn’t want it anyway. I’m going with the scalerworks mount.
And yes, that’s in USD. Being that this is an American forum, I converted what I spent in Canadian to USD.

Edited by Mberlin74
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On 11/20/2022 at 11:05 PM, Rasyad said:

I run an Aimpoint T2 on a 1.53 Scallarworks mount and am really happy with the compact size and easy control of the dot brightness. 

Rasyad

Whoops, I have a correction. On my Benelli M4 I run the Aimpoint T2 with the OEM quick release mount right on the picatinny rail.  (AR pistol uses the 1.53 mount)

With a shotgun or rifle cheek weld you should not have any issues finding the T2 dot or field of view. Both eyes are open and the dot looks like it is floating on the target.

Rasyad

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1 hour ago, Rasyad said:

Whoops, I have a correction. On my Benelli M4 I run the Aimpoint T2 with the OEM quick release mount right on the picatinny rail.  (AR pistol uses the 1.53 mount)

With a shotgun or rifle cheek weld you should not have any issues finding the T2 dot or field of view. Both eyes are open and the dot looks like it is floating on the target.

Rasyad

Thanks Rasyad. 
so I’m assuming with that setup you’re not running with a co witnesses set up? 

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Can anyone tell me what the benefit / drawback is to a co witness set up? I’m not sure I really see the point. If you’re lining up your irons so your red dot is superimposed over your front sight, what’s the point of the red dot in this scenario? Might as well just use your iron sights……right?

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4 hours ago, Mberlin74 said:

Can anyone tell me what the benefit / drawback is to a co witness set up? I’m not sure I really see the point. If you’re lining up your irons so your red dot is superimposed over your front sight, what’s the point of the red dot in this scenario? Might as well just use your iron sights……right?

The benefit is you have your irons & dot together so You have redundancy the drawback is you have to use the stock at its full extension and if something happens to the lens there’s a good chance you lose the use of both sights.

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7 hours ago, Fullassault said:

The benefit is you have your irons & dot together so You have redundancy the drawback is you have to use the stock at its full extension and if something happens to the lens there’s a good chance you lose the use of both sights.

But if your optic lens hypothetically breaks, you'd lose both sights regardless of whether its co witnessed or not. Right?

So when you say "redundancy", it sounds like you're just saying that its more of a "piece of mind" thing that your POA is true to your POI?  It just seems to me that if you're after a red dot sight it would be so that you don't need to line up the irons thus becoming quicker for it. I feel like I'm missing something.  There must be another practical reason for co witnessed sights other than re assurance that your POA and POI are aligned. 

The only other reason that I can think of, is that you'd only need to learn 1 muscle memory for both a co witnessed set up and for straight iron sights.

Everyone please chime in with your experience, insight and infinite wisdom.

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9 hours ago, Mberlin74 said:

But if your optic lens hypothetically breaks, you'd lose both sights regardless of whether its co witnessed or not. Right?

So when you say "redundancy", it sounds like you're just saying that its more of a "piece of mind" thing that your POA is true to your POI?  It just seems to me that if you're after a red dot sight it would be so that you don't need to line up the irons thus becoming quicker for it. I feel like I'm missing something.  There must be another practical reason for co witnessed sights other than re assurance that your POA and POI are aligned. 

The only other reason that I can think of, is that you'd only need to learn 1 muscle memory for both a co witnessed set up and for straight iron sights.

Everyone please chime in with your experience, insight and infinite wisdom.

Not necessarily. In this situation the only cowitness mounts are fixed.  Co witnessing your BUIS and optics really has little to do with checking your POA alignment more to do with if your dot stops working you can continue with your BUIS without having to stop in the middle of a firefight to get your firearm functioning again. It’s really just a matter of preference. I don’t co witnesses mine because I’d rather have the option to use a QD mount and run my stock a click shorter. If something happens to my RMR, I pop it off and run iron sights at the next convenient opportunity . Being a shotgun pin point long range accuracy isn’t quite as much of a priority as a rifle for my purposes so close range accuracy even without sights isn’t going to suffer much.

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22 minutes ago, Fullassault said:

Not necessarily. In this situation the only cowitness mounts are fixed.  Co witnessing your BUIS and optics really has little to do with checking your POA alignment more to do with if your dot stops working you can continue with your BUIS without having to stop in the middle of a firefight to get your firearm functioning again. It’s really just a matter of preference. I don’t co witnesses mine because I’d rather have the option to use a QD mount and run my stock a click shorter. If something happens to my RMR, I pop it off and run iron sights at the next convenient opportunity . Being a shotgun pin point long range accuracy isn’t quite as much of a priority as a rifle for my purposes so close range accuracy even without sights isn’t going to suffer much.

I like the idea of a QD mount for the optic. This way it’s simply a red dot to deal with and not a red dot AND the irons. Looks like I have more to consider. 
Thanks

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7 hours ago, Mberlin74 said:

Any suggestions for QD mounts for the T2 and the SRO? 

i don’t run an aimpoint but i have a holosun 503G on an American Defense AD-T1-L qd mount which has the same footprint for a T1/T2. mine is mounted to the benelli oem rail. it blocks the iron sights making them unusable but it is qd so can be removed quickly if need be. 

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