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Discussion Starter #1 (Edited)
Background: New member here. First real post. I've always loved suppressor-height sights, even on un-threaded guns. I feel they come up to my vision focus faster. AND, I love two-dot or vertical alignment sights. I usually go with XS standard dots on all guns, but decided to switch it up (and mostly because XS doesn't make tall sights).

Price: $135 shipped from HK parts (you can probably get it cheaper, depending on time, and place)

Install: 5.5/10

I'll echo a lot of members' sentiments about Heinies requiring extensive filing. And, not the good kind, where you just file the bottom; it was oversized in the angled portions as well.

Design: 6/10

The newer HK45 ledge design is much more useful. However, being suppressor-height, you can still rack it off the tall front sight, if need be.

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Sight picture: 6/10

This is where the "meh" comes in. No highlights; just black on black with the tritium vials providing the only contrast. I'd dare say it's even worse than factory Meprolights, when it's not dark. Edit: the tritium vial diameters are also smaller than vials used by other major players (Ameriglo, Meprolight, XS, Trijicon, etc); even though they're all made by Trijicon (with the exception of Meprolight).

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I painted the front white with some nail polish left from color-fill projects, and it improved a bit. Also, there's a lot of air between the notch, even with arms fully locked out.

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Conclusion:

I'll most likely be sticking with XS standard dots for non-suppressor sights (referenced below) in the future. When the 12 year half-life comes around, and I still own the gun, I might try out the USP-T adjustable Meprolights.

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Can you measure the blade width and notch width of the Straight 8s? I used to have the info handy.

I must be getting old and grumpy but the sights (Mep NS, Adjustable) are my only gripe with my new USP9T. The adjustable part - awesome, out of the box it was shooting 2-3" high at 5 yards and I made it POA/POI (not 6 o'clock hold).

2 sight gripes IMHO - The ratio of daylight is definitely skewed towards bullseye shooting and not tactical speed shooting. I could use a thinner front blade relative to the rear notch. And the "color" is not black uniformly, but almost black on the rear. Not a major deal in the sunlight, but just have not seen sights this bad in a long time. 1st world problems.

I also paint the front with a Testors orange paint pen and it makes a big difference.

Of course I was spoiled by the millions of options with Glocks. My baseline go-to: Warren Tactical 2-dots and then Trij HDs and then a combo with 10-8 rears/Wilson front. No more and then! And I get that sights are very personal but can have a big impact on your speed and accuracy. Going to continue with the Mep NS rear and try to find a thinner front sight.
 

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front sight focus is everything in my opinion ! i like the XS standard dots, have them on my ppq 9 . friend has heinies and i like them as well . all my H&K 45's have tru dots . i have revolvers, poly's, alloy, rifles and shotguns all with different sights and sight alignment . what i like about HK sight alignment is you cover the bullseyes . i like what you said about suppressor-height sights, you focus faster, again front site focus is everything . the only front sight focus that matters to me is my primary carries and EDC, all H&K 45's . i have the USPt 45 and i have to agree with Barth, bullseye on the tru dots !
 

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Discussion Starter #7
Can you measure the blade width and notch width of the Straight 8s? I used to have the info handy.

I also paint the front with a Testors orange paint pen and it makes a big difference.
Both the front blade and rear notch are exactly 3mm on my ruler. I think I will go with orange (or maybe even yellow) paint as well. The white paint, while an improvement, still doesn't pop as much as I want it to. But, I will have to say, the sights are growing on me. Muscle memory is transitioning and adjusting to these new sights.
 

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3mm is ~.120 for the blade and notch.

I can only assume I want the same setup as my Warren Tacs = .125 Blade and .150 Notch. The Trij HDs are .144 Blade x .169 Notch. I just noticed that both notchs are .025 bigger than the blades.

IIRC the Meps are .140 blade and notch (or was it .130?). That means I need a suppressor height front that is about .115 or .105, with a tritium lamp to work with the adjustable Mep rear.
 
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