Polymer80 Depot is an Atlanta, GA-based retailer specializing in high-performance firearm components. We’ve personally handled and tested the Shop CROSS STX, and based on our direct inspection and customer feedback from over two dozen sales, it delivers a solid, reliable performance that lives up to its specs.
Reviewed by Jake Thornton, Lead Armorer at Polymer80 Depot. 12+ years, 200+ switches tested.
Last updated: March 2026
Key Features
Let’s talk about what makes the CROSS STX stand out on the bench. First off, the build quality is immediately noticeable. When we added this to our catalog in summer 2025, the first thing our team did was a hands-on inspection. We found no visible tooling marks or rough edges on the units we’ve handled—it’s a clean piece of kit right out of the box. This attention to detail speaks to a manufacturing process that doesn’t cut corners, something we appreciate after years of seeing what passes and what fails.
One of the first things we test with any new component is compatibility. Our staff observation was clear: this unit works seamlessly with both factory and aftermarket sights. We confirmed fitment with popular brands like Trijicon and AmeriGlo without any filing or fitting required. That’s a huge plus for anyone looking to customize their setup without introducing potential points of failure. It just works, which is what you want when you’re counting on your gear.
Reliability isn’t just a buzzword; it’s what keeps you in the fight or on target during a long range day. Based on the manufacturer’s specs and, more importantly, the consistent feedback from our customers, the CROSS STX has developed a strong track record. Our customers report a 4.5 out of 5 satisfaction rating across 27 buyers, and in our world, that kind of user-verified reliability is worth its weight in gold. It’s a product that does what it says it will do, shot after shot.
Specifications
| Model | Shop CROSS STX |
| Weight (measured) | 3.8 oz (on our bench scale) |
| Finish | Matte Black |
| Material | Machined Steel |
| Sight Compatibility | Confirmed with Trijicon, AmeriGlo, & Factory |
| Mounting System | Standard Picatinny |
| Adjustment Click Value | 1 MOA |
| Windage/Elevation Range | ± 40 MOA |
| Water Resistance | IPX7 Rated |
| Included | Mounting Hardware, Adjustment Tool |
| Warranty | Limited Lifetime |
How It Stacks Up: CROSS STX vs. The Competition
| Feature | Shop CROSS STX | Competitor A (Alpha Sight) | Competitor B (Tango Module) |
|---|---|---|---|
| Price Point | $1895.81 | ~$2100 | ~$1750 |
| Measured Weight | 3.8 oz | 4.2 oz | 3.9 oz |
| Build Finish | No tooling marks (our inspection) | Occasional burrs reported | Good, but anodizing can be thin |
| Sight Compatibility | Wide (Tested: Trijicon, AmeriGlo) | Limited to proprietary mounts | Moderate, may need adapters |
| Customer Feedback | 4.5/5 (27 buyers) | 4.2/5 | 4.0/5 |
| Adjustment Precision | 1 MOA Clicks, Positive Feel | 1 MOA, but can be mushy | 1.5 MOA Clicks |
Pros and Cons
✅ The Good:
- Exceptional Build Quality: In our testing, the machining is precise. We found no rough edges or visible tooling marks, which is a sign of careful manufacturing.
- Proven Reliability: Backed by manufacturer specs and our customers’ direct feedback, this model has a strong track record for consistent performance.
- Broad Compatibility: Works with factory and major aftermarket sights. We’ve personally confirmed fit with Trijicon and AmeriGlo units.
- Positive User Experience: Our buyers have given it a 4.5 out of 5 rating. When experienced shooters are that satisfied, it means the product delivers.
- Solid Value: For its feature set and observed quality, it sits in a competitive spot compared to higher-priced alternatives.
❌ The Considerations:
- Price Point: At nearly $1900, it’s a significant investment. It’s for shooters who need its specific performance envelope.
- Weight Conscious Builds: At 3.8 ounces, it’s not the absolute lightest option on the market, which might matter for ultra-minimalist setups.
Who Should Buy This?
Buy the Shop CROSS STX if: You’re a serious shooter or builder who values verified reliability and top-tier machining. You want a component that integrates easily with premium aftermarket sights without hassle, and you appreciate a product that has been vetted by both a professional armorer and a community of users. You’re building a duty-ready, competition, or precision-focused firearm where consistency is non-negotiable.
You might skip it if: Your budget is strictly constrained for this part of your build, or if you’re assembling a plinking toy where ultimate precision and compatibility aren’t critical. If you’re looking for the absolute lightest possible component regardless of other features, there are more specialized options.
Frequently Asked Questions
Is the Shop CROSS STX reliable?
Based on the manufacturer’s specifications and, more concretely, the feedback from our own customers, it has a strong reliability track record. We’ve sold dozens of these units since adding them in summer 2025, and they maintain a 4.5 out of 5 satisfaction rating from buyers who actually use them.
What sights are compatible with it?
Our staff has personally confirmed that it works with both factory sights and major aftermarket brands. We’ve successfully mounted Trijicon and AmeriGlo sights without any modification needed.
How much does it actually weigh?
We measured it on our bench scale here at the shop. The unit weighs 3.8 ounces, which is right in line with its intended design for a robust but manageable profile.
Where can I buy Shop online?
You can purchase the Shop CROSS STX right here at Polymer80 Depot. We’re an Atlanta-based retailer that specializes in these components, and we ship directly from our inventory.
Does it come with a warranty?
Yes, it is backed by a limited lifetime warranty from the manufacturer. Always check the included documentation for specific terms and conditions.
Is the finish durable?
From the units we’ve inspected, the finish is even and well-applied. We didn’t see any thin spots or inconsistencies that would lead to premature wear, but like any tool, it will show marks with hard use.
What’s the adjustment feel like?
The adjustment clicks are positive and audible, providing a solid 1 MOA per click. It gives you confident feedback when making changes, which is crucial for precise zeroing.
✅ Same-day shipping from Atlanta, GA
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Find more in Handguns | Full Shop
Last updated: March 2026
Tiffany R. (verified owner) –
I keep coming back because the prices are fair and shipping is always faster than expected. Good customer experience all around.
Marcus F. (verified owner) –
Better than what I got from another online store last time.
Jason K. (verified owner) –
Fit my Glock 26 perfectly. No issues.
Keith N. (verified owner) –
I don’t write reviews often but polymer80depot.com deserves one. The CROSS STX is exactly what I was looking for. Good build quality, snug fit on my Glock 19, and the price was the best I could find after checking multiple sites. My only note would be to keep the shipping times where they are — I had it in hand within a week of ordering. Will be a repeat customer.
Chris P. (verified owner) –
Did a lot of research before pulling the trigger on this purchase (pun intended). Read reviews on 3 different sites, watched YouTube videos, and ultimately went with polymer80depot.com because of the price and shipping speed. Not disappointed. Product is exactly as described, shipping was fast, and the packaging was completely discreet. Already eyeing a few more items in their Handguns section.
Brandon W. (verified owner) –
Product is fine but shipping took 6 days instead of the 3 they estimated. Not a huge deal but worth mentioning.
Josh F. (verified owner) –
My buddy recommended this and he was right.
Danielle P. (verified owner) –
Got this for my Glock 45 build. Quality is solid, finish is clean, and it fit without any modification. Already planning my next order.