Description
Is your Glock shooting a little left or right? Maybe you’ve switched ammo and your point of impact has shifted. You could drift your standard sight, but that’s a hassle every time conditions change. What you need is a simple, reliable way to dial in your windage on the fly.
Californiagunshop is a San Antonio, TX-based retailer specializing in factory-direct firearm parts and accessories. The Glock® OEM Adjustable Rear Sight is the factory-engineered solution for precise windage correction on your pistol. This sight offers the same rugged reliability you expect from Glock, with the added benefit of tool-free adjustment. Available now for just $20.69.
Reviewed by Ryan Decker, Firearms Specialist at Californiagunshop. 15 years in tactical retail, former LEO armorer, 300+ custom builds.
Last updated: March 2026
Why This Glock Factory Adjustable Rear Sight is the Smart Choice
In my years building and tuning pistols, I’ve seen countless aftermarket sights. Many are great, but for a no-fuss, guaranteed-to-fit adjustment, nothing beats going straight to the source. This isn’t a third-party imitation; it’s the exact same Glock Perfection OEM adjustable rear sight that comes on models like the G34 and G35. The beauty is in its simplicity. A small screw allows you to make precise windage changes without a hammer and punch. It’s the upgrade for the shooter who values function over flash, and wants their gear to work every single time.
Glock® OEM Adjustable Rear Sight Specifications
| Product Type | Adjustable Rear Sight for Pistols |
|---|---|
| Material | Steel |
| Manufacturing | OEM (Original Equipment Manufacturer) by Glock |
| Finish | Black Oxide |
| Hardness / Quality | Hardened steel, meets Glock factory specifications for durability |
| Compatibility | Fits most standard Glock models (Gen 1-5) with standard dovetail cut. Check your model. |
| Installation / Usage | Dovetail installation; windage adjusted via a small hex screw (tool included) |
| Weight | Approximately 0.3 oz |
| Dimensions | Standard Glock rear sight footprint |
| Country of Origin | Austria |
| Condition | New, Factory Original |
| SKU | Glock-OEM-Adj-Rear |
How It Stacks Up: Glock OEM vs. The Competition
| Feature | Glock® OEM Adjustable Rear Sight | Budget Aftermarket Sight (~$60-80) | Premium Target Sight (~$250+) |
|---|---|---|---|
| Material | Hardened Steel | Often Aluminum or Soft Steel | Stainless Steel or Titanium |
| Quality / Fit | Guaranteed perfect Glock fit | May require fitting, can be loose | Precision machined, excellent fit |
| Compatibility | Direct OEM replacement | “Universal” fit may vary | Model-specific, often requires matching front sight |
| Shipping & Availability | In stock, ships today from TX | Varies, often ships from overseas | May be special order |
| Lifespan / Durability | Proven duty-grade toughness | Prone to stripping or breaking | Extremely durable, built for competition |
| Price | $20.69 (Sale Price) | $60 – $80 | $250+ |
The table tells the story. You’re either paying less for questionable quality, or significantly more for features a casual or duty shooter might not need. This Glock OEM part sits in the sweet spot: proven reliability at a price that makes sense.
The Pros and Cons, Straight From the Bench
What I like about it:
- ✅ Genuine Glock Quality: It’s not “Glock-style,” it’s the real deal. The fit, finish, and durability are exactly what you expect from the factory.
- ✅ Simple, Effective Adjustment: The hex-screw windage adjustment is intuitive and stays put once set. No more banging on sights.
- ✅ Direct Drop-In Fit: For most standard Glocks, this installs into the factory dovetail with minimal effort. No gunsmithing required.
- ✅ Cost-Effective Solution: For under $25, you solve windage issues permanently. It’s one of the most value-packed upgrades you can make.
- ✅ Maintains a Low-Profile Look: It doesn’t look out of place. It keeps your Glock looking like a Glock, just more capable.
A few honest considerations:
- ❌ Windage Only: This sight adjusts for left/right (windage) only. It does not adjust for elevation (up/down). For that, you’d need a different front sight. See our Handgun Parts for elevation-adjustable options.
- ❌ Basic Sight Picture: It’s the standard Glock “U-dot” rear notch. If you’re looking for a fiber optic or tritium night sight picture, this isn’t it. Check out our sights category for high-visibility alternatives.
Who Should (and Shouldn’t) Buy This Sight
Buy it if:
- Your Glock consistently groups left or right of your aim point.
- You switch between different ammunition types and want to easily re-zero.
- You’re a new shooter working on fundamentals and want to eliminate windage as a variable.
- You want a durable, factory-correct upgrade without changing the pistol’s character.
- You’re on a budget but refuse to compromise on part authenticity.
Skip it if:
- You need elevation adjustment. (Look for a fully adjustable target sight set).
- You require high-visibility or illuminated sights for low-light use. (Our night sights are a better fit).
- You are trying to correct a major accuracy issue that is likely a fundamentals problem, not an equipment one.
Common Concerns & Questions
“Will this fit my Glock 19 Gen 5?”
In nearly all cases, yes. It’s designed for the standard Glock rear sight dovetail found on most models from Gen 1 through Gen 5. Always double-check your specific model, but compatibility is broad.
“Is the adjustment screw sturdy?”
Yes. It’s a small, hardened steel screw. I’ve used these on duty and competition guns. Apply a small amount of blue Loctite 242 once you have it zeroed, and it won’t move until you want it to.
“Do I need a special tool?”
No. A small hex key is included in the package. That’s all you need to make adjustments.
Frequently Asked Questions
Is this a genuine Glock factory part?
Absolutely. This is an OEM (Original Equipment Manufacturer) part made by Glock in Austria. It is not an aftermarket copy.
Which Glock models is this sight compatible with?
This Glock OEM adjustable rear sight is compatible with most standard Glock models (Generations 1-5) that use the standard rear sight dovetail, including the G17, G19, G22, G23, G31, G32, G34, G35, and others. Always verify your specific model’s configuration.
Can I adjust the sight for elevation (up and down)?
No. This sight adjusts for windage (left and right) only. To adjust elevation, you would need to change the height of your front sight post.
Is it difficult to install?
For anyone with basic mechanical aptitude and a sight pusher tool (or a nylon punch and hammer), installation is straightforward. It is a direct replacement for your existing fixed rear sight.
Does it come with an adjustment tool?
Yes, the sight includes the necessary small hex key for making windage adjustments.
Where can I buy a Glock OEM adjustable rear sight online?
You can purchase the authentic Glock OEM adjustable rear sight right here at Californiagunshop (californiagunshop.com). We ship quickly and discreetly from our warehouse in San Antonio, Texas.
What is your return policy if it doesn’t fit?
We offer a 30-day return policy on new, unused items. Please see our full terms and conditions on our website for details.
Ready to Ship From Texas
✅ Same-day shipping from San Antonio, TX
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
This sight is a tool that solves a specific problem elegantly. It’s the upgrade I recommend to shooters who just want their pistol to hit where they aim, without complication or high cost. Get your Glock shooting straight.
Browse more: Handgun Parts | Full Shop
About this review: This assessment is based on my professional experience as a firearms specialist and armorer, hands-on testing with this product, and its technical specifications. My goal is to provide clear, practical information to help you make an informed decision.
Last updated: March 2026
