Ever wondered how to make your Glock pistol even better? One way is by adding an optic, like a red dot sight. But attaching that sight can be tricky. That’s where Glock MOS plates come in. These special plates let you mount different sights onto your Glock’s slide. It sounds simple, but picking the right plate can be confusing.
Many people get stuck trying to figure out which plate fits their specific Glock model and their chosen red dot sight. It’s a common problem that can lead to frustration and wasted money. You want your sight to be secure and work perfectly, and the wrong plate can cause big headaches. Luckily, there’s a way to make this choice much easier.
In this post, we’re going to break down everything you need to know about Glock MOS plates. We’ll explain what they are, why they’re important, and how to choose the best one for you. You’ll learn how to avoid common mistakes and get your Glock ready for its new optic with confidence. So, let’s dive in and get your Glock set up the right way.
Top Glock Mos Plate Recommendations
- Custom made for standard Glock Gen 3 to Gen 5 17 19 22 23 34 35 40 41 45 MOS Trijicon RMR/SRO Holosun 407/507C/508T And Osight C/XR.
- Precision cnc Machined from 6AL4V aerospace grade Titanium.Ultra Low Profile and lightweight,never rust.
- One Piece Design for a Secure Zero Hold,Easy to install
- Installation hardware and tools included, we use high-strength alloy steel Torx head screws.The Osight C/XR uses the screw kit marked "HOLOS".
- 100% MONEY-BACK warranty within 30 days of purchase * NO QUESTIONS ASKED. 7X24 quick response technical support.LIFETIME WARRANTY
- MADE IN THE USA, BUILT TO LAST – Precision CNC Machined from aircraft-grade 6061 aluminum with a MIL-SPEC Type III anodized finish for durability and corrosion resistance.
- TAKE THE GUESSWORK OUT OF COMPATIBILITY - Designed specifically for the Glock MOS Optics Ready Models G17, G19, G20, G21, G22, G23, G26, G34, G35, G40, G41, G45, G47 MOS. Not compatible with non-MOS models, Gen6, G43X/48 MOS, or any other optic or handgun model.
- 15 OPTIC MODELS, ONE PLATE – Compatible with Trijicon RMR, RMR HD, and SRO; Holosun 407C, 507C, 507Comp, and 508T; C&H COMP, Comp Max, and EDC-XL; ADE Stingray RD3-019; Osight X; Swampfox Justice II and Liberty II; and Viridian RFX35.
- MORE THREAD ENGAGEMENT, SECURE OPTIC MOUNTING – Our patented stainless-steel T-nut design provides 6–7 threads of engagement to help reduce stress on the screw and maintain a secure connection between your optic and adapter plate.
- LOWER PROFILE, FASTER FOLLOW-UP SHOTS - The slim 0.095-inch plate minimizes added mounting height, helping keep your optic closer to the bore to support faster follow-up shots.
- Perfect Fit Compatibility – Works with Glock Gen 3 to Gen 5 17, 19, 22, 23, 34, 35, 41, and 45 MOS Osight K/S/SE. Not compatible with 43X/48 MOS or aftermarket-cut slides.
- Built for CCW/EDC – Precision CNC-machined from 6AL-4V titanium billet with a durable black PVD finish. Ultra-low profile, lightweight, and rust-proof.
- Tight Tolerance, Reliable Hold – Engineered for a secure fit and consistent performance under daily carry conditions.
- Upgraded Hardware – Includes custom-length screws made of SCM435 alloy steel, quenched, tempered, and coated with an anti-rust finish.
- One-Piece Secure Design – Solid construction maintains zero. Easy installation with all hardware and tools included.
- Red dot adapter plate for Gen 4 / Gen 5 optics ready MOS full sized or compact Glocks for mounting of RMR footprint red dots
- Compatible with optics ready MOS Version G17, G19, G22, G23, G34, G40, G41, G45, and G47; NOT compatible with Non-MOS version Glocks or with Slimline MOS version G43x/G48 Glock pistols. Not compatible with other pistols.
- Compatible with RMR footprint red dots only. Please refer to the compatibility chart graphic before purchasing. Includes M3 screws in multiple length for compatibility across different red dot makes and models. Recommended torque specs : 15 in/lbs.
- Monstrum Real Steel Series mounts are crafted from stainless steel and electrolysis treated for corrosion resistance. Steel is a more durable material than aluminum, providing 1) more rigidity against recoil 2) more resistance to extreme temperatures and 3) less susceptibility to stripping.
- All Monstrum products are backed by our lifetime guarantee
- Precision fit for Gen 5 MOS models including G17, G19, G34, G45, and G47 for a seamless look.
- Crafted from high-strength nylon polymer for long-lasting durability and impact resistance.
- Protects internal slide components from dust, dirt, and debris when no optic is mounted.
- Proudly Made in the USA by Takteq, ensuring premium quality and reliable performance.
- MADE IN THE USA: Proudly manufactured in Las Vegas, NV.
Choosing the Right Glock MOS Plate: A Buyer’s Guide
Glock’s Modular Optic System (MOS) allows you to easily mount a red dot sight onto your pistol. A Glock MOS plate is the crucial piece that connects your red dot sight to your slide. Picking the right one makes a big difference. Let’s dive into what you need to know.
1. Key Features to Look For
When you’re shopping for a Glock MOS plate, keep these important features in mind:
- Optic Compatibility: This is the most important thing! Not all plates fit all red dot sights. Check the plate’s description to see which specific optic models it’s designed for. Some plates are universal for certain optic footprints (like RMR or Doctor footprint), while others are made for just one.
- Material Strength: The plate needs to be tough. It holds your optic securely and handles recoil.
- Locking Mechanism: How does the plate attach to your Glock slide? Look for secure locking mechanisms that prevent the plate from coming loose. Some use screws, others have built-in retention features.
- Height and Profile: Some plates add a little height to your optic. This can affect how you aim. Most shooters prefer plates that keep the optic as low as possible for a natural sight picture.
- Corrosion Resistance: Your plate will be exposed to sweat, moisture, and maybe even rain. It should resist rust and corrosion to last longer.
2. Important Materials
The material of your MOS plate affects its durability and performance.
- Aluminum: Many good quality plates are made from aluminum. It’s strong but lightweight. Aircraft-grade aluminum is often used for its extra toughness.
- Steel: Steel plates are very strong and durable. They can be a bit heavier than aluminum.
- Polymer: Some plates use strong polymer. These are lightweight and can absorb some recoil. However, they might not be as strong as metal options for very heavy-duty use.
3. Factors That Improve or Reduce Quality
Several things can make a MOS plate better or worse.
What Makes a Plate Better:
- Precision Machining: A plate that is made very precisely will fit snugly and securely. This means your optic won’t wiggle.
- Good Finish: A durable coating or finish protects the plate from scratches and rust.
- Clear Markings: Some plates have markings that show you where to place screws or how to align them. This makes installation easier.
- Reputable Brand: Buying from a well-known company usually means you’re getting a quality product.
What Can Reduce Quality:
- Loose Tolerances: If the plate isn’t made with tight measurements, it might have a sloppy fit. This can lead to the optic moving.
- Cheap Materials: Using lower-quality aluminum or plastic can make the plate less durable.
- Poor Design: A plate that doesn’t properly support the optic or uses weak attachment points can fail.
- Lack of Corrosion Resistance: A plate that rusts quickly will look bad and can weaken over time.
4. User Experience and Use Cases
How you use your Glock and what you want from your red dot sight will influence your choice.
For Everyday Carry (EDC): You’ll want a plate that is lightweight and keeps your optic low for a comfortable carry. Durability is still key, as it needs to handle daily bumps and sweat.
For Competition: Speed and reliability are king. You need a plate that holds your optic rock-solid through thousands of rounds and rapid firing. A slightly higher mount might be acceptable if it improves sight acquisition.
For Range Use: For casual shooting, most decent quality plates will work well. You might prioritize ease of installation and affordability.
The right MOS plate makes your red dot sight a reliable aiming tool. Take your time, check compatibility, and choose a strong, well-made option. Your Glock will thank you.
Glock MOS Plate: Your Top 10 Questions Answered
Q1: What exactly is a Glock MOS plate?
A: A Glock MOS plate is a small piece that screws onto your Glock pistol’s slide. It has a specific pattern that matches your red dot sight, allowing you to attach the sight securely.
Q2: Do I need a MOS plate for every red dot sight on a Glock?
A: Yes, if your Glock has the MOS system cut into the slide, you need a specific MOS plate that matches your red dot sight’s base. Glock offers different plates for various optic footprints.
Q3: How do I know which MOS plate fits my red dot sight?
A: Always check the product description of the MOS plate. It will list the compatible red dot sight models or optic footprints (like RMR, Doctor, DeltaPoint, etc.).
Q4: Are all Glock MOS plates made by Glock?
A: No. While Glock makes some plates, many other companies make high-quality aftermarket MOS plates. These can sometimes offer better materials or designs.
Q5: Can I install a MOS plate myself?
A: Yes, most MOS plates are designed for DIY installation. You’ll typically need a small torque wrench and the correct size Allen (hex) keys. Always follow the manufacturer’s instructions.
Q6: What happens if I use the wrong MOS plate?
A: Using the wrong plate can cause your red dot sight to not fit properly, leading to loose mounting. This can make your sight unreliable, lose its zero (aiming point), or even get damaged.
Q7: Does the MOS plate affect my pistol’s accuracy?
A: A properly installed, good quality MOS plate should not negatively affect your accuracy. In fact, a secure mount helps maintain your optic’s zero, improving consistent accuracy.
Q8: How tight should I screw in the MOS plate screws?
A: It’s very important to use a torque wrench and tighten the screws to the manufacturer’s recommended torque specification. Overtightening can damage the plate or slide, and undertightening can cause the optic to loosen.
Q9: What’s the difference between a steel and aluminum MOS plate?
A: Steel plates are generally stronger and more durable but heavier. Aluminum plates are lighter and still very strong, especially if made from aircraft-grade aluminum.
Q10: Should I get a plate that adds height or one that keeps the optic low?
A: Most shooters prefer plates that keep the optic as low as possible for a natural sight picture. However, some competition shooters might use slightly taller plates to clear iron sights or for faster sight acquisition.