Need source for Sig sights

[slo squeezin]

I recently purchased a used Sig 220 / 45cal. Works great but shoots consistently low at 25', 2-3" when I use 200 gr SWC at approx 800-830 fps. I called Sig service, they said instead of getting a shorter front sight ( got one dot front, two dots rear ), I should get a taller rear sight. No problem until he says they make them twice a year. I'm told I need a # 10 rear sight.
Are SIG sights different in size than any other brands ? Does anyone make a front /rear combo for SIG that won't shoot low ? If I could find an alternative, I'd go with a green fiber front, plain or fiber rear.
Any suggestions would be appreciated.

[dleong]

http://www.cdnninvestments.com/sigsauer10.html

[slo squeezin]

Thanks dleong, the # 10 is what I need. Do you also have any source for fiber options ?

[dleong]

Glad to help, sir!

Amazon.com has some HiViz FO sights for your Sig:

http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=hiviz+sig+sauer

Amazon's prices seem the most reasonable, plus you get free shipping for orders over $25. I've ordered a number of sights from them before.

[jshuberg]

Works great but shoots consistently low at 25', 2-3"

Do you mean 25 feet, or 25 yards? If you mean feet, you'll need to send it in for warranty repair. That is more than a simple sight change will be able to correct.

As far as Sig sight heights go, a higher rear sight number (taller) will raise the point of impact, but a smaller front sight number (taller) will lower the point of impact. Changing the front sight one number will move POI one inch at 25 yards, changing the rear sight one number will move the POI two inches at 25 yards. A change of the front sight by .005" is equal to one sight number, where a change of the rear height by .010" is equal to one sight number.

.40 and .45 caliber Sigs come with a #6 front and #8 rear sight. 9mm and .357 Sigs come with a #8 front and #8 rear. You could either replace your front (currently #6) with a #10, or your rear (currently #8) with a #10, either of which will raise the POI 4" at 25 yards. If you are going to replace the front with a fiber optic anyways, I'd recommend replacing the front. Especially when the front change is lower, and the rear change is higher. Lower sights are less likely to snag on things coming out of the holster from under a concealment garment.

This is one of the best fiber optic front sights you can get for a Sig. Their .150 tall sight is equivalent to the #10 (although they label it as a #9, I think its a typo or math error on their part. The #6 and #8 are labelled correctly), which would raise your POI by 4 inches.
http://www.dawsonprecision.com/ProductD ... 1278686599

Note that Sig pistols come setup with a different sight picture than you may be used to. Below are 3 common sight pictures, Sig uses sight picture #3


#1 - Bullseye AKA 6:00 Hold
#2 - Traditional
#3 - Combat

One advantage to #3 is that in low light using night sights, POI is directly behind the glowing dot, as you may not be able to make out the sight outline. Another advantage is when using fiber optic sights when flash sighting, for the same reason - the glowing dot will attract the eye and shots will place directly behind it. The disadvantage (other than it being different from what a lot of people are used to) is that it does completely cover the POI, making accurate shots on small targets more difficult. Personally, I prefer the traditional sight picture at 25 yards.

If you're not going to be using night sights, you should also consider using a solid black rear sight. After a little practice, centering the fiber dot in the rear is easy. A lot of people (myself included) find having a bunch of dots to line up to be very visually noisy. It's too easy for your brain to grab the wrong dot as your aligning your sights, which can either slow you down as you shift focus to the front sight, or result in a loss of accuracy if your focus is on the rear sight. It's very hard to train your brain to consistently lock onto the front dot rather than the rear dots in the time it takes to develop a flash sight picture. This may also result in shooting better/worse depending on the lighting conditions on the gun. I've found that by simplifying the sight picture by eliminating excess clutter, the brain is able to lock onto the front sight more easily, resulting in a faster and more accurate alignment. Something to consider anyway.

Hope this helps!

[slo squeezin]

Thanks guys, you have given me a lot to work with. I like the simplicity perspective.

[jshuberg]

Here is a handy reference for accurately determining the correct height of your front sight. It will work with any gun using any sights.
http://www.dawsonprecision.com/images/I ... Height.pdf

If you're going to replace both front and rear, pick up your rear first, and use your existing front to determine the exact height of the front you need.

Here are some solid black rear sights for a Sig:
http://www.dawsonprecision.com/Category ... ear+Sights

Personally, I like the traditional Warren tactical sight best. Their dog-ear one is designed to be a more snag-free sight, but just looks goofy to me. The Dawson's come in multiple notch widths, and are serrated on the front so they will grab better when cycling the slide via the sights, but they are also higher than a normal rear sight, limiting your options when selecting a matching front sight.

I've tried a whole ton of different sights over the years, and recently picked up several different adjustable rears. None of them really worked right. If you're not looking for night sights, the Warren rear and Dawson front really work well together.

[slo squeezin]

Thanks again for the minutia, and experience. The CS guy at SIG suggested upping the rear rather than lowering the front. After taking another look at the gun, I'd agree, the front sight is already pretty short, making it shorter would not make it any easier to pick up.
I thing I'm going to try the higher rear ( plain ) with a green HiViz on the front. I've got a G17 with a green HiViz for the front sight and have been trying to get used to the different sight alignment after many years of using a six o'clock hold. Some consistency across
the more frequently used pistols would probably help my speed and accuracy.

[jshuberg]

One last suggestion then, before ordering the rear measure the height of your current #6 sight with a calipers. Then install the Hiviz sight and measure it to determine if it is in fact the same size. Hiviz advertises it's Sig front as a #6, so it should be the exact same height, but it might not be.

For example, TruGlo sights (both front and rear) are actually .050" higher than the number they advertise them to be. They work together as a pair just fine, but you cannot mix and match them with other sights. If you were to replace a Sig #8 front with a TruGlo #8, keeping the same rear, you would actually be printing 10" low at 25 yards, which is really really really bad. I'd expect Hiviz to be much closer, but it could still be off a little. Keep in mind that a difference in height equivalent to the thickness of one piece of printer paper translates into ~1" at 25 yards.

For every .010" difference between the Hiviz and your Sig #6, you would need to go up/down one additional rear height number or you'll be off by ~2" at 25 yards. For reference the overall height of a Sig #6 is .230" and height above slide is .170"

Basically, if you want to use a front and rear from different manufacturers, purchase the one with the fewer height options first, measure it, and then order the other one or you may end up with a combo that wont print where you think it will. Lemme know how it goes.

Also, for all you XD guys out there, the XD dovetail is exactly the same as the Sig, so all of the various Sig sight options are also available to you if you want to customize.

[rukwikenuf]

One last suggestion then, before ordering the rear measure the height of your current #6 sight with a calipers. Then install the Hiviz sight and measure it to determine if it is in fact the same size. Hiviz advertises it's Sig front as a #6, so it should be the exact same height, but it might not be.

For example, TruGlo sights (both front and rear) are actually .050" higher than the number they advertise them to be. They work together as a pair just fine, but you cannot mix and match them with other sights. If you were to replace a Sig #8 front with a TruGlo #8, keeping the same rear, you would actually be printing 10" low at 25 yards, which is really really really bad. I'd expect Hiviz to be much closer, but it could still be off a little. Keep in mind that a difference in height equivalent to the thickness of one piece of printer paper translates into ~1" at 25 yards.

For every .010" difference between the Hiviz and your Sig #6, you would need to go up/down one additional rear height number or you'll be off by ~2" at 25 yards. For reference the overall height of a Sig #6 is .230" and height above slide is .170"

Basically, if you want to use a front and rear from different manufacturers, purchase the one with the fewer height options first, measure it, and then order the other one or you may end up with a combo that wont print where you think it will. Lemme know how it goes.

Also, for all you XD guys out there, the XD dovetail is exactly the same as the Sig, so all of the various Sig sight options are also available to you if you want to customize.

damn Shuberg, you really DO know your SIGs, huh?! i suppose, you own more than a couple and shoot them more than frequently