Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Discussion about rifles in 300 AAC BLACKOUT (7.62x35mm), hosted by the creator of the cartridge.

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700PSS
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Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by 700PSS » Sat Oct 09, 2010 9:51 pm

Please list your recommendations (e.g. Aimpoint T-1, Eotech XPS, etc.), including applicable quick-detach mounts. (I plan to use Magpul MBUS sights, perfect co-witnessed through the optic.)

Yes, these things can get expensive. Not looking to spend the most $ possible on the optic, but well above the cheap level.

List some good options and I'll relist them as a poll.

Thanks!
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Re: Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by 300Blk » Sat Oct 09, 2010 10:04 pm

For now I would suggest a Ti with a KAC mount.

It won't handle the bullet drop of course, but that is what I would use today.

The good news is that you will always have a use for it on something.

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Re: Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by Stickman » Sun Oct 10, 2010 12:29 am

Another Aimpoint T1 in KAC mount vote from me.


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Re: Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by rob_s » Sun Oct 10, 2010 8:43 am

I'd vote H1. Nothing it doesn't do for the commercial user that the T1 does which means the delta is wasted money.
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Re: Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by 300Blk » Sun Oct 10, 2010 10:03 am

AIMPOINT rates the battery life of the micro equal to the M3. Is that really true for the same brightness dot?

They say 50,000 hours. The M4 is 60% longer life rating, but the battery is about 15 times the physical size. Do we think their numbers are reliable?

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Re: Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by 700PSS » Sun Oct 10, 2010 11:04 am

rob_s wrote:I'd vote H1. Nothing it doesn't do for the commercial user that the T1 does which means the delta is wasted money.
I agree on the H-1. I see the T-1 for as low as $608 and the H-1 for as low as $542. Figure another $131.25 for KAC mounts (if/when they become available again, hopefully at that price).

EOTech XPS2-0 as low as $469. I don't see a good QD option for EOTech. If sight height of Magpul MBUS is 1.5", does EOTech axis center also fall at 1.5" for co-witness?
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Re: Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by 300Blk » Sun Oct 10, 2010 11:51 am

The reason why I want a 1.4 inch sight height is not so that I can co-witness but rather because that is the standard height for an AR sight. Is is the cheekweld that works for me. It is the cheek weld I am used to. This is why 'lower 1/3 co-witness' is so dreadful - you compromise your optic position just so that the iron sight you never use is in the lower 1/3rd. What a bad idea that seems to be.

With a red-dot sight, I recommend a front sight only. If you want a rear backup at all, use a KAC or one that is normally down. If your red-dot dies when you are shooting, just use the red-dot sight as a ghost-ring along with the front sight. Then if you have time, and have one, flip up the rear.

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Re: Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by st33ve0 » Sun Oct 10, 2010 12:05 pm

silencertalk wrote:The reason why I want a 1.4 inch sight height is not so that I can co-witness but rather because that is the standard height for an AR sight. Is is the cheekweld that works for me. It is the cheek weld I am used to. This is why 'lower 1/3 co-witness' is so dreadful - you compromise your optic position just so that the iron sight you never use is in the lower 1/3rd. What a bad idea that seems to be.

With a red-dot sight, I recommend a front sight only. If you want a rear backup at all, use a KAC or one that is normally down. If your red-dot dies when you are shooting, just use the red-dot sight as a ghost-ring along with the front sight. Then if you have time, and have one, flip up the rear.
This. I can shoot minute of bad guy at close range pretty reliably with just the hood of my EOTech and an A2 front sight. Not ideal, but with the much lower battery life of the EOTech's it does in a pinch. I'd vote for a T-1 or H-1 as that's probably what I'll be doing on my build unless the Leupold 300 BLK showing is as impressive as I think it's going to be.

I've never understood the appeal of lower 1/3 cowitness.
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Re: Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by 700PSS » Sun Oct 10, 2010 3:40 pm

st33ve0 wrote:
silencertalk wrote:The reason why I want a 1.4 inch sight height is not so that I can co-witness but rather because that is the standard height for an AR sight. Is is the cheekweld that works for me. It is the cheek weld I am used to. This is why 'lower 1/3 co-witness' is so dreadful - you compromise your optic position just so that the iron sight you never use is in the lower 1/3rd. What a bad idea that seems to be.

With a red-dot sight, I recommend a front sight only. If you want a rear backup at all, use a KAC or one that is normally down. If your red-dot dies when you are shooting, just use the red-dot sight as a ghost-ring along with the front sight. Then if you have time, and have one, flip up the rear.
This. I can shoot minute of bad guy at close range pretty reliably with just the hood of my EOTech and an A2 front sight. Not ideal, but with the much lower battery life of the EOTech's it does in a pinch. I'd vote for a T-1 or H-1 as that's probably what I'll be doing on my build unless the Leupold 300 BLK showing is as impressive as I think it's going to be.

I've never understood the appeal of lower 1/3 cowitness.
I agree with both of you here. I measured the center peep height above the rail on my Magpul MBUS rear sight and it is 1.40" high and perfectly centered co-witness through my Aimpoint. Not having to change cheek-weld is a big plus. The red dot is right on top of the front sight post.

I’m leaning toward the Aimpoint H-1 with the QD conversion and high spacer. I hope that will result in the correct height. The KAC mount comes with different height spacers to choose from, although it’s not currently available.
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Re: Red Dot Sight/Compact Optic for 300 BLACKOUT PDW

Post by Dr.Phil » Mon Oct 11, 2010 8:09 am

My choice for a 1x optic is the Gen III Trijicon Tri-Power with an A.R.M.S. Throw Lever Mount.
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Reason being, the chevron makes for extreemly fast aquisition.
By using the tip of the chevron it is also more accurate than a red dot optic since it does not obscure any of the target.
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