Ade Advanced Optics Optics Delrin Shims 1.0 Degree for Vortex Venom & Viper, ADE RD3-006, RD3-009, RD3-012, RD3-013, RD3-015,Crimson Trace CTS -1250, Insight , Docter, Meopta, Sightmark, Burris Fastfire II, III,Red dot Sight

Fixed my problem on a Canik pistol I couldn't get the red dot sight to adjust far enough down but shim wasn't cut exactly for mounting holes so it was flexing or bowing slightly up but still made it work and got it sighted in finally.

A great product to zero a red dot optic. Was supposed to fit a Vortec Viper but didn’t. Had to drill a couple of extra holes, but was an easy job and am extremely pleased with the results.

This is a 1-degree shim for use with high mount dot sights to tip them down a little bit. That part is just fine but the dimensions for the holes to mate to the pins with the Burris type mount plate are not accurate. They are too far apart in the long dimension. I was able to file the front holes oval and make it fit without buckling. The other thing to be aware of is that the thicker part of the shim may use up the entire rear mount pins, so the dot sight is positioned only with the front pins and the mount screws. This may be an issue if you need to remove to replace the battery as you will have to re-zero after.

I purchased this shim because, like many others, the red dot that I just mounted and tried to zero has reached the upper extent. I am a little disappointed that this is made from plastic and so, a little leery as to how long it will last. One of the first things I noticed, when I attempted to add it to my optics mount, is that it did not just fit. The style of the mount is designed to fit a Vortex Venom. The mount plate I purchased it branded ADE, just like this shim. The holes were a little to far apart from front to back. So, I took a razor knife and trimmed, very carefully, around the inside of the front holes (thin end) toward the rear holes. Just tiny scrapings until, when I placed shim on the mount, it would just lay on there. That worked and the optic is now mounted. Today I am going to go to the range and give it a shot. Update February 13, 2021. This shim has held up well. Siting in the red dot was quick and accurate. I gave it one more star.

I was having a hard time getting my red dot lowered enough to begin sighting in on my M&P Shield Full Frame pistol, so off to Amazon I went. After doing a quick search for “pistol sight shim”, the Ade shim popped up near the top of the search feature. So I figured that I might as well give it a shot since it cost like $10. Shipping was quick; delivered two days after order, like most prime products. The product feels like plastic…but I believe it is still metallic as the battery for my sight is operational and could only conduct with a metallic object. I didn’t have any issues with mounting like some of the other complaints, everything seemed to line up perfect. The only issue I had was figuring out what screws to use that came with my mounting plate, as the normal ones weren’t quite long enough once I added in the shim. I did have an extra set of screws that fit perfect so it came together pretty well. Once tightened down, everything looks good and feels tight, which is what anyone would want when using precision optics mounts. My only gripe, if you could call it one, is that it just “feels cheap” due to it being pretty flimsy…but hell, what can you expect with with a 1 degree shim? If you’re on the fence, just make the decision to get one. It worked out very well for me and should for you as well.

It did the job as described. It's made out of plastic, but it's very even and level. Running from 1.5mm at its thickest to paper then towards the front. I need a shim on my new Beretta APX A1. The plate from Beretta to mount a RDO on the slide is for a Burris Fast Fire, Vortex Venom or Docter. However, the plate is flat with no anticipation for the extreme angle and short distances between the RDO, front sight, and EDC distances. The Venom mounted directly to the APX saw my boresight and red dot to be off by like 50 MOA and at 15 yards, about 2 feet low between laser and dot. This shim helped solve that. Mounted between the mounting plate and RDO, it added about a degree or two downwards to the front. I was able to dial in the RDO well within the elevation range. The only complaint was the outer holes are a little off. I had to elongate two of the holes to fit on the raised locating pins on the corners. Also consider buying screws that are 1mm longer too. With the shim adding around 1mm of thickness, the screws on my APX only have about 1 and a half threads to grab the slide now. Before it had a solid 2+ threads.

Ordered the wrong one, my fault for not paying attention. Had to widen the holes but once installed it corrected the elevation problem. The plastic is tougher than I expected.

Browning Buck Mark/Vortex Venom. Corrected issues with maxing out elevation screw. Basic plastic shim, grossly overpriced based on the estimated cost of a flimsy piece of plastic but definitely well worth the price compared to a diy solution.

Made my scope work properly

All the holes align correctly and correct size. Cured the dot alignment of my Burris fast fire 3!

The shim was easy to install. I had to adjust the holes slightly to fit the Vortex Venom base but it wasn't a big deal. The shim corrected the problem I had of running out of adjustment. Zero'd fine after installation.

Worked exactly as advertised. Solved my new Vortex Venom running out of elevation nicely. Easy to install, fit my Venom/TandemKross Shadow mount perfectly. Saved me a potential warranty issue. As for durability, only time will tell. (Corrected to 5 stars)