Look for a small mark on the base of the front sight blade. A "-" or "- ." indicates a short front sight blade, so replacing it with "+" or "+." will lower the POI. A standard blade has no mark. Each blade height increment is about 2" at 100 yards. You will need to shoot a group at 300 meters/yards to determine what correction will be needed.

 

Would I have to remove the sight to see this mark?

We're very close to having a run of 400 of those sights for the k31 and k11 ready. I'll let you know when and where you can find them. It won't be from us direct I'm afraid.

Definitely interested in purchasing one!

 

We're very close to having a run of 400 of those sights for the k31 and k11 ready. I'll let you know when and where you can find them. It won't
be from us direct I'm afraid.

 

A 'field expedient modification' that just might work for you is to Crazy Glue a narrow strip or two cut from something like an old credit card to the top of the front sight blade, and paint it flat black when you add to it (or file it down) to get it to the height you want.

Also, this is not a permanent modification if you want to sell the rifle. Comes right off with Crazy Glue Debonder.

The advantage to this approach is you should be able to get to the exact front sight height you want, instead of the closest 'standard approximation' that you can find.

 

Today I took my K11 to a friend's house and compared it to his K11. My friend's front sight is clearly marked with a "+", and he says this is exactly how it came from Classic Firearms. Looking at the same location on my rifle, and it looks like mine has a "-". His sight is clearly taller than my sight. I bought my rifle from an individual, but it has the same import mark as my friend's rifle. Both sights appear to have the windage marks mentioned above in the exact same location on the opposite side of the sight from the "+ and -" marks.

Just wondering whether these rifles could have come out of the Swiss armory with different front sights, or would this have been something the previous owners changed out? If so why would someone put a "-" sight on one of these rifles............shooting at 600 yards maybe? Anyhow, I think this certainly explains why my rifle is shooting so high at 100 yards.

I'm in the market for a "+" front sight now.

 

Swiss armorers maintained supplies of front sights in various sizes to be installed on individual arms to suit them to the different vision, perception, and preferences of individual firers. Perhaps this simplified sketch will help explain why this was helpful -

Here's Guisan's post on "The 20 official K11/K31 sight blades and their markings..." -

From left to right is lowest to tallest and the middle one is a standard height.
Heights are 5.9, 6.2, 6.5 (standard), 6.8 and 7.1 mm. Changing out a blade by one step moves the POI at 300 meters by 7" (18cm) for a K11 and 6.3" (16cm) for a K31.

The lower row are the normal 1.8mm wide blades, the other rows are the wider ones as used for the senior shooters and for the ZfK55.

 

Swiss armorers maintained supplies of front sights in various sizes to be installed on individual arms to suit them to the different vision, perception, and preferences of individual firers. Perhaps this simplified sketch will help explain why this was helpful -

Great post. I nominate this for sticky status.

 

"No Body Sees This"

Well, that is what I think is going on but may not be the case.

Sad note is I can't say anything more than right now, I can do what I do consistently
but at age 68, that won't last very long.

I did shoot a 6 3/8 inch group with GP11 and iron sights about 2 months ago so I was doing
something near correct. Luck ? well, the rifle and ammo is not for debate, they shoot that good
or better. The shooter...I have my days

 

"No Body Sees This"

Well, that is what I think is going on but may not be the case. . .
I did shoot a 6 3/8 inch group with GP11 and iron sights about 2 months ago so I was doing
something near correct. . .

The reason "Nobody sees this" is simply that the human optical system is incapable of simultaneous focus on near, mid, and distant objects. Young, flexible eyes can quickly shift focus from one distance to another, producing a perception of simultaneous focus - but truly focusing several distances at the same instant is an optical impossibility.

If the 6 3/8" group was at 600+ yards, that's great shooting. At 100 or 200 yards, not so much.

 

Thanks Parashooter, very helpful post. I agree that those diagrams should be a sticky. My sight has the "-" with no numbers or other symbols. My friends K11 has the "+" with the "." under it. Since both of these sights have the windage staking and don't appear to have been removed, I think that the possibility exists that the sights were placed by a Swiss armorer to compensate for some soldiers varying sight pictures. Between these 2 rifles we see the extremes. Both rifles have troop tags, but I suspect the original owners are no longer with us, so I may never know for sure.

 

Both rifles have troop tags, but I suspect the original owners are no longer with us, so I may never know for sure.

You suspect?
The first persons to whom your carbines may have been issued would have been born around 1893-ish..... I suspect that you are correct. :thumbsup:

tac

 

Please add me to your list of interested buyers for the Schmidt Rubin 100 yard front sight
Thanks
edsauers@gmail.com

 

K11 100 yd sight blade | swissproductsusa

Replacement sight blade for k11 rifles.

www.swissproductsusa.com