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1911 sights - measuring

TidalWave

TidalWave

Professional
Hey all,
Looking to replace the stock 3-dot sights on my Tisas ss 1911 Carry (.45) with a gold bead front and a u-notch (preferably) ledge rear with no dots…
Anybody have a link to a good, ‘simple explanation’ type resource that tells how to measure?
For ex, I’ve never known if the front sight height is measured from the slide top or the bottom of the sight base, to the top of the post - or is it to the dot/bead? Is it in inches?
Also how to measure the rear.
All this is for ordering purposes of course. My Tisas’ front and rear are dovetailed in; I don’t think anything is pinned or anchored.

Just needing something that spells out what to measure.

Thanks in advance…
TWave
 
TidalWave said:
Hey all,
Looking to replace the stock 3-dot sights on my Tisas ss 1911 Carry (.45) with a gold bead front and a u-notch (preferably) ledge rear with no dots…
Anybody have a link to a good, ‘simple explanation’ type resource that tells how to measure?
For ex, I’ve never known if the front sight height is measured from the slide top or the bottom of the sight base, to the top of the post - or is it to the dot/bead? Is it in inches?
Also how to measure the rear.
All this is for ordering purposes of course. My Tisas’ front and rear are dovetailed in; I don’t think anything is pinned or anchored.

Just needing something that spells out what to measure.

Thanks in advance…
TWave
Click to expand...
Maybe get ahold of @xdman on here, he should be able to help you out with this.
 
It's the height of the front blade measured from the top of the base (top of base to top of post).

Rear sights heights usually aren't measured, but my guess would be from the bottom of the notch to the top of the slide.
 
HansGruber said:
It's the height of the front blade measured from the top of the base (top of base to top of post).

Rear sights heights usually aren't measured, but my guess would be from the bottom of the notch to the top of the slide.
Click to expand...
Thnx; far as the rear I think I only need to measure the width of the slide cut…??
The front I’ve got to also fit the base into the slide cut and also know what height I want.
 
TidalWave said:
Thnx; far as the rear I think I only need to measure the width of the slide cut…??
The front I’ve got to also fit the base into the slide cut and also know what height I want.
Click to expand...
They look like Novak-style cuts...which is a very common style for dovetails on 1911's.
 
HansGruber said:
It's the height of the front blade measured from the top of the base (top of base to top of post).

Rear sights heights usually aren't measured, but my guess would be from the bottom of the notch to the top of the slide.
Click to expand...
On some sights they are measured take Truglo they make a High and low front, and they make a high and low rear. So you can have anything from a Low Low combo to a High low combo to a High High. 1911's are the worst. You can't even take Truglos advice. On my Springfield TRP I was supposed to go with a High High, but in reality I needed a low front high rear.
 
xdman said:
On some sights they are measured take Truglo they make a High and low front, and they make a high and low rear. So you can have anything from a Low Low combo to a High low combo to a High High. 1911's are the worst. You can't even take Truglos advice. On my Springfield TRP I was supposed to go with a High High, but in reality I needed a low front high rear.
Click to expand...
I utterly and completely defer to your expertise in this matter, sir!
 
Hans was correct, the Tisas spec says Novak cut… can that be taken to mean the cuts in the slide are standard dimensions for Novak cut sights?
 
I live out in the country in Louisiana and while we don't have a large population, we have a couple of gunsmith and one of the local gun shops is owned by a vet who builds AR's. I have spent a few dollars with them and will stop by for a visit on occasion which makes it easy to stop by and ask a few questions. As I have tried to explain to my wife when she says she wants a boat, no dear what you want is a good friend that owns a boat.😁😂😂
 
I know it's been a while, but For measuring 1911 sights, I’d say it’s pretty straightforward once you have the right tools. You’ll want to carefully measure the front sight height and the rear sight notch width.

Using a caliper or ruler is the way to go, and if you don’t have a caliper, a simple ruler will do the job, too. Ensure you're precise, especially when measuring the rear sight because that can affect your aim. You could even use a micrometer for the tiniest adjustments if you need to be accurate.

Also, check your measurements online to cross-reference—plenty of good guides for this. Here's a handy link you might find helpful: ruler.onl for more measuring tips.
 
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