HW/Weihrauch Aperture disks...

[Wadcutter]

Picked up a loose FWB diopter sight but couldn't figure out exactly what gun it came on. It has meter markings not found on any of the other FWB sights I'd seen of that type.
Winning this FWB2000 at a local auction answered the question. Still though, when placed side by side, it has a slightly longer base.

Comparison photos with standard FWB300S sight at top and the long base at bottom.

 

[MDriskill]

Nice! Thanks for the fine pics, had not seen an FWB firearm diopter before - and what a gorgeous rifle, wow.

Besides the extra length, it looks like it might also have a little more horizontal and vertical adjustment range than the air rifle sights.

 

[MDriskill]

The fun part of a sighting system like that is the impression that it gives others who are not initiated into the precision side of rifle shooting.
The apparent mechanical complexity lends itself to the belief that you must be a degreed engineer or mathematician to hit the target, and the associated lingo involving sight radius, aperture size, front sight size, and diopter correction thickens the air of mystery.

I know that I have mentioned it before, but your Redfield looks completely at home on that rifle. The rifle looks like business, and does so naturally.

Thanks! I confess part of the reason I did that, is I just thought it looked cool LOL. Blame it on 45+ years in architecture, but I'm a sucker for such impractical things.

 

[TnCnDn]

Picked up a loose FWB diopter sight but couldn't figure out exactly what gun it came on. It has meter markings not found on any of the other FWB sights I'd seen of that type.
Winning this FWB2000 at a local auction answered the question. Still though, when placed side by side, it has a slightly longer base.
View attachment 563379
View attachment 563376

Comparison photos with standard FWB300S sight at top and the long base at bottom.

View attachment 563382View attachment 563383View attachment 563384View attachment 563385

I do not recall what sight the Kimber 82 Govt. trainer came with for I have moved it on. Now have another that does not have any. Just curious

 

[Chuck-in-Ohio]

I do not recall what sight the Kimber 82 Govt. trainer came with for I have moved it on. Now have another that does not have any. Just curious

One of these

 

[TnCnDn]

That's it...thank you and and a Memorial day to all

 

[TnCnDn]

Picked up a loose FWB diopter sight but couldn't figure out exactly what gun it came on. It has meter markings not found on any of the other FWB sights I'd seen of that type.
Winning this FWB2000 at a local auction answered the question. Still though, when placed side by side, it has a slightly longer base.
View attachment 563379
View attachment 563376

Comparison photos with standard FWB300S sight at top and the long base at bottom.

View attachment 563382View attachment 563383View attachment 563384View attachment 563385

Is this what you have? If so are you familiar with a Kimber 82 govt.? Might it fit or rather work?

 

[MDriskill]

I hope Chuck will forgive my jumping in, but the sight in your pics is an early FWB "Type 1" sight as used on the models 150, 300, and early 300S. The Kimber sight has many similarities but at least two important detail differences:

1. Locking bolt. The early FWB sight has a "sleeve" around the clamping bolt that fits into one of those transverse recesses in an FWB receiver. Mr. Google shows me there is no such thing on the Kimber 82.

2. Rail spacing. FWB's (and older Walthers's) rails are, maddeningly, just a bit wider than the more or less standard-ish 11mm developed by Anschutz, and used on the Kimber. If you try to put an FWB sight on an 11mm rail - or vice versa - you're gonna bend or scratch something.

As an aside...those transverse lines further forward on the FWB receiver are "aiming marks" for the crossbolt. Aligning the front of the sight with one of those, centers the bolt on a corresponding groove.

The later FWB "Type 2" as in my pic above, moves the clamp knob to the left side, and the crossbolt has a cutaway on one side, so that the knurled thumb lever on the right flips it out of the way. But you still have to deal with the oddball wider groove spacing (I've never tried it, but maybe you could work out shims for on 11mm grooves?).

 

[TnCnDn]

I hope Chuck will forgive my jumping in, but the sight in your pics is an early FWB "Type 1" sight as used on the models 150, 300, and early 300S. The Kimber sight has many similarities but at least two important detail differences:

1. Locking bolt. The early FWB sight has a "sleeve" around the clamping bolt that fits into one of those transverse recesses in an FWB receiver. Mr. Google shows me there is no such thing on the Kimber 82.
View attachment 565158

2. Rail spacing. FWB's (and older Walthers's) rails are, maddeningly, just a bit wider than the more or less standard-ish 11mm developed by Anschutz, and used on the Kimber. If you try to put an FWB sight on an 11mm rail - or vice versa - you're gonna bend or scratch something.

As an aside...those transverse lines on the FWB receiver are "aiming marks" for the crossbolt. Aligning the front of the sight with one puts the bolt in the groove.
View attachment 565157

Awesome, thank you!

 

[marflow 777]

and today the problem with the Redfield rear sights is they are priced like they are gold so damn many on Ebay and i bet they just sit there
Mike the Kimber 82 diopters
didn't i read some posts that they would not work on air rifles because they ran out of adjustment and none on Ebay there used to be many there

 

[MDriskill]

Thanks Mike. You are certainly correct on the cost of the Redfields (my "Olympic" was a lucky acquisition from a very generous fellow forum member). Sadly, other "name brand" classic diopter sights - Anschutz, Lyman, Marbles, Vaver, Parker-Hale, etc. - are doing much the same thing.

I've never seen one of the Kimber sights, so that's good info! FWIW, my Redfield had the same issue actually - per my earlier post, I had to jerry rig a riser for the front sight to make it work.

 

[Chuck-in-Ohio]

The Kimber sight, when adjusted to its lowest point will adjust lower than the FWB type 1 and type 2 sights, but will not adjust as low as an Anschutz 6705 rear sight.
Offered purely as a point of reference to the above conversation.

The Kimber sight adjusts in 1/5 MOA increments by the way.

As an even farther detour into useless match sight trivia, did you know that the front globe sight on the Kimber 82G was a 16mm Diana sight?

 

[MDriskill]

Thanks Chuck! Hey...there is no "useless" match sight trivia in my world.

It's interesting that Kimber didn't go with the increasingly ubiquitous M18 Anschutz pattern front sight Inserts.

Marflow educated me that the classic Diana inserts are identical to the old Walther and FWB ones, though, which widens the search field a bit. This is true even though the Walther and Diana tunnels use an M17 securing sleeve, while FWB's is an M18.

 

[Chuck-in-Ohio]

I would have expected Kimber to utilize an existing Anschutz sight set on the 82G as well, but we get a Diana front and an Australian rear.
The 'useless' remark was issued with tongue firmly in cheek, I assure you. Useless to most, but every once in a while you get someone who says 'Aha, info noted'

 

[marflow 777]

yes, the Kimber 82 use the same globe sight as a model 75 or 100 Diana but they are a little different as how they clamp on
would i use one on my Diana's hell yes
so the old Walther insert size is 15.9mm or 16mm and FWB, Diana, Walther and Kimber use them
years ago when Kimber sights were all over Ebay i bought maybe 4 globe sights, they came with 10 inserts and the dovetail mount that screwed on to the 82 barrel and they were pricey, all of 40 buck free shipping cheap as hell, now you could not get the inserts for 40 bucks
you know Mike D and i have been down the sight rabbit hole, i took a tent and Mike D built a house LOL
but over time we have learned many things, and one is sights are not cheap
the one on the right is Kimber and for my money better made that what came on the Diana

 

[MDriskill]

Thanks for the pics, marflow - great stuff! If I may ask, what does the Kimber insert set look like?

It looks like Kimber took a page from the FWB book, and uses an M18 securing sleeve? A great move as it opens up the world of aftermarket accessories.

 

[specie]

Interesting how the modern FWB aperture disk has the aperture hole in the disk at the end of a "tunnel"; substitutes for the rubber sun shade?
The Anschutz 6700 and 6702 can be used on a FWB dovetail if the front of the steel rails are splayed a bit? Of course these two are more expensive than the alloy FWB diopter!

 

[MDriskill]

The Anschutz 6700 and 6702 can be used on a FWB dovetail if the front of the steel rails are splayed a bit? Of course these two are more expensive than the alloy FWB diopter!

Maybe I'm just a wimp and haven't shoved hard enough! But when I've tried this, I stopped short as it's hard to see how to avoid damaging something. And as nice as the old Anschutzes are, I don't see any performance advantage over FWB's units. YMMV of course.

 

[Chuck-in-Ohio]

I think it would be more of a 'making what you have in hand work' scenario.

I agree with you Mike about not seeing any performance advantage over a stock FWB sight. When solidly benched to zero the sights to the rifle, either rear would work perfectly to get centered up, and my inbuilt biological error negates any advantages when firing unsupported.

That said, I would buy a FWB 300S with an Annie sight on it in a skinny minute, because my warped thought currents only see a FREE ANSCHUTZ SIGHT with the purchase of a rifle!

I am not as deep in as some ( I am looking right at you Mike and Mike) but I will share my meager lot of spares

 

[MOSOSODBOB]

This totally non-factory get-up is one I've been shooting a lot lately. The sight is a classic US-made Redfield Olympic, originally intended for a rail on the side of A .22LR match rifle's receiver. Here it's mounted to an Anschutz SA-1411 adapter, which mates the Redfield to typical German 11mm grooves. It has a Merit adjustable-aperture eyepiece and is mounted on an HW 55 CM.

View attachment 563244

I have the same set up on my Anschutz 54… the rubber eye piece is showing its age and is cracking … know where I may find a replacement? Been using silicone grease as stop gap. Mine was on an Army rifle team gun and had been well used and not necessarily well cared for.