Aperture Rings Kit

  • Aperture Rings Kit with Aimpoint Shades
  • Aperture Rings Kit - Rubber Band Rings
  • Aperture Rings Kit - Rubber Band Rings
  • Aperture Rings Kit - Curtis Custom Gun

John Zurek

Thank you Tony and Brenda Silva and the White Mountain Bull’s-eye Shooters Association for hosting the Arizona short course state championship this last weekend. Thank you to my many sponsors, zero ammunition, Lapua, aimpoint with Alex Poltorak “aperture” and especially gun builder Jon Eulette for building a tight shooting wadgun! Posted a good score in the centerfire national match course 299-17x which set a new national record! great facility in the White Mountains of Arizona.

- John Zurek

As I progressed learning why instead of seeing a red DOT I see all kinds of figures and shapes but the dot, and especially after conversation with one of the support technicians at the Trijicon, who politely recommended to find and see a “shooting” eye doctor, search for options began. I read through great articles by Dr. Norman Wong, various blogs and posts by fellow shooters, found shooting eye doctor, - in short, I devoted quite a bit of time to understand what can be done to help me dealing with my aging eyesight and astigmatism. It was also helpful that one of my other “shooting” hobbies is photography. Understanding how Aperture works with photo lenses, some of the suggestions I found in Dr. Wong’s articles - Concentric Ring Enhancer, studying various EyePal / Optical Attachments to shooting glasses led me to designing and machining Rubber Band and Aperture Rings.

Without a question Rings enhanced my vision (shooting is a different story, but at least I can see where I shoot now!). However it took me quite a bit of time to adopt. In order to maximize benefit of vision enhancing rings, aperture must be as small as possible for distance, size of the target, light conditions, and the course of fire (i.e. Slow Fire versus Sustained Fire in Precision Pistol that I shoot). I estimate that it took me over 50 hours at the range to move from 0.700” aperture to 0.200” shooting at 50 yard slow fire course, and to 0.350” at 25 yards without losing the dot between shots.

I finalized on the Set of Rings you can see here. Rubber Band Rings have 30mm and 0.700” IDs (30mm is included in the Set, 0.700” can be ordered separately. I also include one free Rubber Band Ring with purchase of my shades for Aimpoints Micro H1 or 9000SC). Aperture Rings have 0.700”, 0.500”, 0.350”, 0.200” and 0.125” IDs. Aperture Rings have the same thread as 30mm Ultradot’s Polarizing filter, Rubber Band Rings have the same thread as 30mm Ultradot’s Extension Tube. Thus entire set can be used with 30mm Ultradots, but might require additional trim ring as Ultradot reversed thread sizes from front to back in different models. Such rings (and extension tubes) can be ordered through Ultradot’s website.

For sale is a set of 5 (FIVE) Aperture Rings plus 1 (ONE) 30mm Rubber Band Ring. Other parts seeing on pictures, - shades, Ultradot accessories, Trim Rings and of course my gun (as pictured) are not included.

Due to the variations in thread sizes in Ultradot models use of trim (thread conversion) ring(s) might be necessary for installing either Rubber Band or Aperture rings. For very same reason I have machined and anodized Rubber Band Rings with both “large (Extension Tube)” and “small (Polarized Filter)” threads. Your order might be shipped with either one. All Ring orders with / or for my Aimpoint H1 or 9000 shades will have Rubber Band rings with appropriate thread.

Due to the variations in thread sizes in Ultradot models use of trim (thread conversion) ring(s) might be necessary for installing either Rubber Band or Aperture rings. For very same reason I have machined and anodized Rubber Band Rings with both “large (Extension Tube)” and “small (Polarized Filter)” threads. Your order might be shipped with either one. All Ring orders with / or for my Aimpoint H1 or 9000 shades will have Rubber Band rings with appropriate thread. In order to address thread variations mentioned above I manufactured Thread Conversion Rings that allow for threads conversion from “Small” to “Large” and vice versa. These can be used universally on Ultradot’s 30mm Matchdots sights.

When ordering rings please specify thread conversion you would like to accomplish.

Aperture Rings Kit
Set of 5+1 Rings: $48.00
Additional Rubber Band Ring: $8.00
Thread Conversion Rings
Set of 2: $20.00
Single Thread Conversion Ring: $12.00


Customer Reviews

November 6, 2020

I heard about Alex's products on the Bullseye-L forum and decided to give the Aperture Rings kit a try. I put them on my Hämmerli X-Esse Sport .22 pistol and noticed a distinct sharpening and compression of my field of vision through my Ultradot Matchdot 2 scope. It also resulted in an increase of my scores. I'm super impressed with this product and am in the process of figuring out how to put them on the Aimpoint H-2 dot for my .45 1911 pistol. Fantastic product!

- Valerie Bernhardt

November 3, 2020

I met Alex in Illinois at a school I was teaching. He showed me his Aperture Ring Kit and I was interested somewhat....thinking it might be "Snake Oil" sales pitch. I received the kit in the mail from Alex the following week. I put the kit on my AimPoint 9000SC and went outside and shot. After playing with the different Aperture openings, I settled on the next to the smallest opening(forgive my exact size Alex) The first slow fire target was a 98-6X's. First thing I noticed was the ease and repeat ability of referencing the pistol in the almost exact position each time. Instead of just a dot in a circle, now I have to put the dot in middle of the target, put the dot in the middle of the Aperture opening and put the dot in the middle of the rear band. Sounds like too much going on? IT'S NOT..For those of you that have bow hunted, it works on the same principle(rear aperture and front sight) I use 2 different size Aperture for the 25 and 50 yard line. You need a little more opening for the 25 for shot recovery. Don't panic, you have time for the dot to settle back on target. The second thing that I noticed was the absence of my astigmatism. Same principle as looking through an aperture on your glasses, the dot becomes round and not a comet's tail or starburst. I have shot only 2 matches with Alex's system, but my X-count and points have come up. I wish I had started Bullseye shooting 20 years ago and had this system. Ya'll would be saying STEVE(Reiter) who??? Thank you Alex for this wonderful product. Shoot Straight Philip Hemphill

- Philip Hemphill

September 14, 2020

I don't believe in "buying points", but when you see 5 star product reviews from names like Eulette, Zurek, and Hemphill then maybe it's times to give it a try...so I did. So I get the Aperture rings in the mailbox around 2pm, attach them to the aimpoint 9000 and head out back for some timed fire. I start with some dry fires to test out the different sizes and settled on one. Load some .45 and shoot a 100-4x. I clean targets on occasion so it isn't out of the norm, but what I noticed was that the reduced field of view helped a few different ways. Made me more aware of what the dot was doing, it made my recovery back to the black feel faster, and overall made me focus more on what was happening. Still the same nut pulling the trigger, it just made the skills I already have easier to apply. I tend to rush shots when it's in the black and this really helped slow me down. Can't wait to keep shooting with it!

- David Paquette

February 21, 2020

I installed the aperture rings onto my Aimpoint 9000SC for the centerfire and 45 match at the desert midwinter championship in Phoenix Arizona. Immediately I found that my field of view reduced and my concentration/focus increased. My shot group tightened up - on one slow fire 50yd target I managed 7x! Very impressed with the results in slow fire stage, I applied aperture rings to my 25yd timed and rapid fire portion of the competition. Initially I tried to maintain the dot within the aperture and struggled through first stage of timed fire. On the second stage I used aperture rings to maintain good sight alignment which was a good confidence booster when proper trigger pressure applied. I like the aperture rings which mount on the muzzle end of scope to reduce field of view yet still allow full 30mm view of red dot. I would recommend aperture rings to any shooter who is working to minimize their hold. I managed 53x & 50x in CF and 45 match... to obtain greater than 50% center hits is impressive and I conclude that the aperture rings helped me immensely!

- John Zurek

January 9, 2020

I have found that dry firing with the use of the apertures have been more fun and productive. I start out without the red dot on to get the feel of the trigger, even while in the dark sometimes. I would then turn on the dot but dry fire against a blank wall. Eventually, I must study the dot against the bull to fully see and understand what is happening during my dry firing process. I prefer the 30mm red dot scopes for the tunnel/tube effect when used with the rubber band ring, but the apertures help block out the "excess visual noise" in the periphery of the sight picture. As a result, I found it easier to see the dot and the bull, and to see dot movement if and when it did occur after the trigger breaks. This helped me decide how to adjust my grip to reduce dot movement. I was not griping much harder but rather griping smarter. To my surprise during dry fire while I experimented with trigger finger placement, I remembered what I believe I learned during the Zins/Moody pistol clinic over a decade ago. By looking at the dot when the trigger breaks, I found the best finger placement on the trigger which minimized dot movement, and many times there was no dot movement. While at the range, I found the 0.700" and 0.500" apertures to be the most useful and beneficial for me. Again, there was less visual peripheral noise and greater emphasis to the sight picture of the dot and bull. I have been able to call my shots well in the past but with the use of the apertures, the calls were more pinpoint. No matter what level of shooters we are, we can learn and re-learn things which we may have forgotten. I believe the use of these apertures may help struggling shooters continue to shoot within their NRA classifications or help jump to the next level. A sharpshooter won't be shooting master scores overnight because of the apertures. The same can be said with shooting the most expensive pistols with the most accurate ammo. Did I shoot better? Yes, if I keep in mind all of the fundamentals we've learned and applied them to every shot. No, if I was sloppy. Being in good shape along with dry fire practice and frequent training sessions at the range will help one appreciate the use of these apertures. I believe seeing a ring, within a ring, within a ring draws our eyes naturally to the dot and bull, allowing for a quicker sight picture acquisition and keeping everything centered.

- Norman

November 6, 2019

I recently ordered a set, the shipping was fast, and overall I'm very happy with the product. I shot a 900 match and my slow fire scores were 3-5 points higher than usual, so I can definitely see that it worked for me! The sustained fire scores were not as good, but this is of course just a first impression, and I will continue testing in different conditions - so this is work in progress. I published a detailed review in my blog and I will provide my updates there as I progress.

- Eugene Berman

October 31, 2019

I've been experimenting with the Aperture Ring Kit for the last several months. I initially was only interested in the rear ring (rubber band ring) and was skeptical of the aperture rings. I was skeptical because of my being set in my ways and not as flexible as I really should be. I think the Aimpoint 9000 is the best bullseye optic made. The red dot is nice and round and bright even when small MOA setting (which I like) and the lens clarity is near perfect. Only thing I do not like about Aimpoint optics is the very fine windage and elevation adjustments. My first experience with the rubber band ring was positive. I prefer shooting using the red dot as the front sight and the optic tube as the rear sight. So I strive to keep the red dot centered in the optic tube as much as possible. What I immediately noticed about the rubber band ring is that I had less eye bounce as I call it; eye darting from red dot to the optic tube. The optic tube becomes more clear peripherally for me. When I shoot matches I normally show up on minimal amount of sleep and tired right out of the gate. I found that shooting with the rubber band ring I had less felt eye fatigue. At this point I can't imagine shooting without it. The aperture rings took some open mindedness on my part. I've always liked using 30mm optics and always thought that the extra field of view was an advantage. I initially experimented with the aperture on the rear of the optic tube only because that was our first test parameter. I was here nor there about it and most likely wouldn't have used it alone. But after getting a prototype front aperture it was like the optic came alive. In other words, I think the combination of the front and rear aperture is the way to go. It seemed to visually help keep the red dot more centered. I found I liked it mostly for slow fire and would change to a larger diameter front aperture for the short line to open up the field of view. I've been battling with my eye drifting from/off the red dot on my 5th shot on the short line and throwing a shot in both timed and rapid fire. The smaller field of view has helped to keep my focus on the red dot and not look at the target. I have tried both bare unfinished aluminum and the red anodized apertures. The bare aluminum is a little bright and the red anodized surface seems to have just the right contrast to keep the red dot the primary objective visually. I've shot both with and without overhead cover and find that the red color works well. The front aperture will appear black when looking through the optic, so the anodizing is purely ascetic. The front aperture size should appear slightly smaller than the rear aperture when looking through the optic. This aids in keeping the red dot easy to find as well as its really the right way to use it. It gives a feeling of a more centered red dot which could for some people lead to better accuracy/grouping. I think it could also be a great training aid as well. When you're working on grip and wrist consistency with a smaller aperture it will show you inconsistencies better than a large 30mm optic tube. I found that I had no problems losing the red dot during recoil with the apertures. I found that I preferred a middle ground aperture size from the kit. I don't look at the apertures as a gadget or gimmick. They truthfully have merit that I believe can help a shooter be more consistent or grow as a shooter. At a minimum, I would highly recommend the rubber band ring. I will point out that if you do not have a grasp at the fundamentals that using a smaller aperture could be a detriment due to limiting the field of view. The Aimpoint Micro has a slanted/angled projection inside the optic for the red dot projection. It has always bothered me. I have used the aperture rings on it and like that I can make that disappear. I have been shooting bullseye since 1989 and at one point was shooting high master 2650 scores. So I have mastered the fundamentals fairly well. I'm saying this because I believe shooters at or near this level probably will not gain as much as a lower classification shooter. But I do believe the rubber band ring to be a huge assist on keeping the optic tube concentric on the red dot. So I'm interested to see how they continue to work for me in the future.

- Jon Eulette