The Best Um Tactical Shim of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Um Tactical Shim of 2025. Check our ranking below.
2,238 Reviews Scanned
- ELEVATION CONTROL FOR SIGHT ZEROING – Precision 1° Delrin shim fits between your red dot optic and mounting plate, allowing fine-tuned elevation adjustments. Flip orientation to raise or lower the dot, solving alignment issues during zeroing without returning your optic.
- SAVE YOUR SIGHT, DON’T RETURN IT – If your red dot maxes out its elevation adjustment and still sits too high to zero, this precision shim offers a practical fix. By slightly raising the optic, it allows the illuminated dot to move lower within your sight picture—no need to return a working red dot as "defective."
- FITS POPULAR MICRO OPTICS – Precision-fit shim made for footprints including Vortex Venom/Viper, Burris Fastfire II/III, Docter, Insight, Meopta, EOTech MRDS, Sightmark Mini Shot, Hex Dragonfly, Leica Tempus, and ADE RD3-006, 009, 011, 012, 013, 015，028. DOES NOT FIT Holosun, Trijicon RMR, Shield, or Romeo Zero.
- ELEVATION FIX FOR HARD-TO-ZERO DOTS – Some optics can’t adjust low enough to zero, even when the screw is maxed out. This 1° delrin shim lifts the optic just enough to bring the dot into alignment. Taper: 1.0°, Tolerance: ±.005 for precision correction.
- EASY INSTALLATION WITH FLEXIBLE FIT – Installs between red dot and mounting plate in minutes. Position the thicker side toward the rear of the slide to lower the dot. Position the thicker side toward the front of the slide to raise the dot. If center screw holes are slightly off on some optics, simply widen the hole as needed for a secure, flush fit. No need to return or replace your sight—just fine-tune and go.
- Scope base shims
- Tolerance +/-.005
- Taper 1.0 degree
- Made in the USA
- Optic Shim is made to fit between the red dot and the mounting plate. Depending on the handgun, some handguns need THIS 1degree shim to give extra range of elevation across a wide range of firearms (such as the 1911). Should you feel any resistance from the mechanism whilst zeroing the elevation please fit the shim between the sight and the mount. Position the thicker side toward the end to lower the dot. Position the thicker side toward the front to raise the dot
- Position the thicker side toward the rear of the slide to lower the dot. Position the thicker side toward the front of the slide to raise the dot.
- Also Fits: Ade Advanced Optics RD3-006, RD3-009, RD3-011, RD3-012, RD3-013, RD3-015. The center two screw holes might be 1 or 2mm off for some red dots, if so, simply trim cut the hole bigger. Does NOT fit Trijicon rmr, Shield, Sig Romeo, Holosun red dots
- Also Fits: Ade Advanced Optics RD3-006, RD3-009, RD3-011, RD3-012, RD3-013, RD3-015, Burris Fastfire II, III, Docter Red Dot Sight & Insight MRDS
- What it does? While zeroing the red dot sight, some users turned the elevation screw all the way to the end that can no longer turn(screw maxed-out), the location of the illuminated dot is still TOO HIGH, user is UNABLE to adjust the dot LOW enough to zero. Instead of returning the "defective" red dot, this shim will rise the optic to help user to move the illuminated dot higher to the location to zero. Scope base shims Tolerance +/-.005 Taper 1.0 degree.
- ELEVATION CONTROL FOR SIGHT ZEROING – Precision 1° Delrin shim fits between your red dot optic and mounting plate, allowing fine-tuned elevation adjustments. Flip orientation to raise or lower the dot, solving alignment issues during zeroing without returning your optic.
- SAVE YOUR SIGHT, DON’T RETURN IT – If your red dot maxes out its elevation adjustment and still sits too high to zero, this precision shim offers a practical fix. By slightly raising the optic, it allows the illuminated dot to move lower within your sight picture—no need to return a working red dot as "defective."
- FITS POPULAR MICRO OPTICS – Precision-fit shim made for footprints including Trijicon RMR/SRO, Ade Advanced Optics, RD3-019, RD3-020, RD3-023, Holosun HS407C/HS507C/HS507T, Riton X3 Tactix PRD, ADE RD3-011, Swampox Kingslayer/Liberty/Justice.
- ELEVATION FIX FOR HARD-TO-ZERO DOTS – Some optics can’t adjust low enough to zero, even when the screw is maxed out. This 1° delrin shim lifts the optic just enough to bring the dot into alignment. Taper: 1.0°, Tolerance: ±.005 for precision correction.
- EASY INSTALLATION WITH FLEXIBLE FIT – Installs between red dot and mounting plate in minutes. Position the thicker side toward the rear of the slide to lower the dot. Position the thicker side toward the front of the slide to raise the dot. If center screw holes are slightly off on some optics, simply widen the hole as needed for a secure, flush fit. No need to return or replace your sight—just fine-tune and go.
- ELEVATION CONTROL FOR SIGHT ZEROING – Precision 1° Delrin shim fits between your red dot optic and mounting plate, allowing fine-tuned elevation adjustments. Flip orientation to raise or lower the dot, solving alignment issues during zeroing without returning your optic.
- SAVE YOUR SIGHT, DON’T RETURN IT – If your red dot maxes out its elevation adjustment and still sits too high to zero, this precision shim offers a practical fix. By slightly raising the optic, it allows the illuminated dot to move lower within your sight picture—no need to return a working red dot as "defective."
- WIDE OPTIC COMPATIBILITY – Fits Holosun 407K/507K, EPS, EPS Carry, Shield RMS/RMSC/SMS/RMSW, ADE RD3-018 SPIKE, RD3-021 NUWA, RD3-030 Apollo, Romeo Zero, Delta Point Pro, JP Enterprises JPoint, and Sentinel. Not compatible with RMR, SRO, Docter, Venom, Viper, Fastfire, or ADE RD3-006/009/012/013.
- ELEVATION FIX FOR HARD-TO-ZERO DOTS – Some optics can’t adjust low enough to zero, even when the screw is maxed out. This 1° delrin shim lifts the optic just enough to bring the dot into alignment. Taper: 1.0°, Tolerance: ±.005 for precision correction.
- EASY INSTALLATION WITH FLEXIBLE FIT – Installs between red dot and mounting plate in minutes. Position the thicker side toward the rear of the slide to lower the dot. Position the thicker side toward the front of the slide to raise the dot. If center screw holes are slightly off on some optics, simply widen the hole as needed for a secure, flush fit. No need to return or replace your sight—just fine-tune and go.
- 1° DELRIN SHIM FOR ELEVATION CORRECTION – Designed to install between your red dot sight and optic plate, the 1-degree tapered shim adjusts elevation angle when zeroing isn't possible. A simple fix for maxed-out elevation screws or dots sitting too high during adjustment.
- WIDE OPTIC COMPATIBILITY – Fits Holosun 407K/507K, EPS, EPS Carry, Shield RMS/RMSC/SMS/RMSW, ADE RD3-018 SPIKE, Romeo Zero, Delta Point Pro, JP Enterprises JPoint, and Sentinel. Not compatible with RMR, SRO, Docter, Venom, Viper, Fastfire, or ADE RD3-006/009/012/013.
- FIXES MAXED-OUT ELEVATION ISSUES – Some optics can’t be zeroed properly because the elevation screw bottoms out before the dot aligns. This 1° angled shim helps realign the optic’s position so users can achieve proper zero.
- SOLVES ELEVATION MAX-OUT ISSUES – If the red dot’s elevation screw maxes out before the dot lowers enough to zero, this shim provides a rear lift that raises the optic, allowing the dot to shift lower into proper zeroing range. No need to return the sight. Position the thicker side toward the rear of the slide to lower the dot. Position the thicker side toward the front of the slide to raise the dot.
- PRECISION-TAPERED 1° SHIM FOR ZERO CONTROL – Engineered with a 1.0° taper and ±.005 tolerance, this shim fine-tunes elevation by changing optic angle. Thicker side at rear lowers dot; thicker side at front raises it—simple positioning, precise results.
- Do not return your "defective" red dot that can't adjust the illuminated dot high enough to zero. This optic shim solves the problem by raising the red dot higher to zero. Optic Shim is made to fit between the red dot and the mounting plate. Position the thicker side toward the end to lower the dot. Position the thicker side toward the front to raise the dot.
- Fits: Trijicon RMR/SRO, Ade Advanced Optics, RD3-019, RD3-020, RD3-023, Holosun HS407C/HS507C/HS507T and
- Also fits Riton X3 Tactix PRD, ADE RD3-011, Swampox Kingslayer/Liberty/Justice. The shim might need to be trimmed to the shape to match some of red dot brand mentioned above.
- What it does? While zeroing the red dot sight, some users turned the elevation screw all the way to the end that can no longer turn(screw maxed-out), the location of the illuminated dot is still TOO HIGH, user is UNABLE to adjust the dot LOW enough to zero. Instead of returning the "defective" red dot, this shim will rise the optic to help user to move the illuminated dot higher to the location to zero. Scope base shims Tolerance +/-.005 Taper 1.0 degree.
- Depending on the handgun, some handguns need THIS 1degree shim to give extra range of elevation across a wide range of firearms (such as the 1911). Should you feel any resistance from the mechanism whilst zeroing the elevation please fit the shim between the sight and the mount with the thickest part at the rear.
- color may vary
- Contains only the most useful / thin sizes for optimized freedom
- 0.1mm and 0.2mm ensures that there are reduced amount of useless shims
- Designed by top technicians for all AEG gearbox and other precision shimming applications
- Optimized diameter
Last update on 2024-05-12 / Affiliate links / Images from Amazon Product Advertising API
How Do You Buy The Best Um Tactical Shim?
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We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Um Tactical Shim that you consider buying. Your questions might include the following:
- Is it worth buying an Um Tactical Shim?
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- What factors deserve consideration when shopping for an effective Um Tactical Shim?
- Why is it crucial to invest in any Um Tactical Shim, much less the best one?
- Which Um Tactical Shim are good in the current market?
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We’re convinced that you likely have far more questions than just these regarding Um Tactical Shim, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.
Potential sources can include buying guides for Um Tactical Shim, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Um Tactical Shim. Make sure that you are only using trustworthy and credible websites and sources.
We provide an Um Tactical Shim buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Um Tactical Shim currently available on the market.
This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:
- Brand Value: Every brand of Um Tactical Shim has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
- Features: What bells and whistles matter for an Um Tactical Shim?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your Um Tactical Shim.
- Customer Ratings: Number ratings grade Um Tactical Shim objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Um Tactical Shim.
- Product Quality: You don’t always get what you pay for with an Um Tactical Shim, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an Um Tactical Shim is should be an indication of how long it will work out for you.
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FAQ:
Q: Does the Delrin Shim from UM tactical actually work?
A: I read some reviews that Vortex actually recommends using the Delrin 1.0 degree shim from UM Tactical to remedy the point of aim / impact issue. I can say the shim, in my case with my shot hitting low, has fixed my problem.
Q: Where can I buy Delrin shims?
A: Delrin Shims are made to fit between the Burris Fastfire red dot and the mount. Fits; Burris Fastfire II, III, Docter Red Dot Sight & Insight MRDS These items are shipped from and sold by different sellers. Show details In Stock. Ships from and sold by Mounting Solutions Plus. In Stock. Sold by Ade Advanced Optics and ships from Amazon Fulfillment.
Q: What degree of Shim for vortex Venom 3 MOA red dot?
A: Ordered and received 1.0 degree shim for vortex venom 3 moa red dot. Shim received was plastic, had 8 holes instead of 6, and does not line up with any of the holes on my optic. Ordered and received 1.0 degree shim for vortex venom 3 moa red dot.
Q: How to mount a delrin Shim on a red dot?
A: Mount the delrin shim between the EGW base and red dot with the thick end to the back of the mount if impact is low, vise versa if hitting high. Try this fix if you need to hold high or low to hit your target and you need more adjustment on your red dot sight to be on target. Have a Walther Q5 with a Vortex Venom optic on it.
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