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Glock 43 Slide Cut for Red Dot | RMSc & RMRcc Slides
Glock 43 Slide Cut for Red Dot – RMSc, RMRcc & Optics-Ready Slides
Upgrade your Glock 43 or 43X with a slide cut for red dot optics—the ultimate performance boost for accuracy, speed, and modern carry optics. At Mounts Plus, we offer premium, CNC-machined Glock 43 slides with industry-standard red dot cuts including RMSc, RMRcc, and 507K footprints.
Whether you're building a slimline concealed carry gun or a custom Glock red dot rig, our pre-cut slides save you time, money, and gunsmithing stress.
🔍 What Is a Glock 43 Slide Cut for Red Dot?
A slide cut is a precisely milled recess on the top of your Glock 43 or 43X slide that allows for direct mounting of a micro red dot sight. These cuts are tailored to optic-specific footprints (RMSc, RMRcc, Holosun K-series) and include threaded screw holes to secure the sight without adapters or plates.
✅ Why Choose a Pre-Cut Slide?
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No need for milling or slide modification
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Clean fit with correct screw hole placement
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Lower profile for co-witness and concealability
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Maintains structural integrity of OEM slide dimensions
📐 Red Dot Compatibility Chart
| Cut Type | Optic Footprint | Compatible Red Dots | Glock Models |
|---|---|---|---|
| RMSc Cut | RMSc / Shield Standard | Shield RMSc, Holosun 407K/507K, Sentinel | Glock 43, 43X |
| RMRcc Cut | Trijicon RMRcc | Trijicon RMRcc only | Glock 43, 43X |
| Multi-Cut | Combo (RMSc + Holosun) | Holosun EPS Carry, 407K, 507K | Glock 43X MOS |
💡 Tip: Always verify your red dot’s footprint before selecting a slide.
🔝 Best Glock 43 Slides With Red Dot Cuts
1. Zaffiri Precision RMSc Cut Slide
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CNC machined from 17-4 stainless steel
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Black nitride or FDE finish
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Compatible with Holosun 507K, Shield RMSc
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Includes matching cover plate
2. RMRcc-Cut Glock 43 Slide
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Designed for Trijicon RMRcc optics
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Slim profile, ultra-low cut
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Rear serrations for positive grip
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Optic screws included
3. Custom Multi-Footprint Slides
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Support RMSc & Holosun EPS Carry
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Suppressor-height sights optional
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Ready-to-ship, drop-in fit for G43/G43X
🎯 Benefits of Mounting a Red Dot on Your Glock 43
✔️ Faster target acquisition
✔️ Enhanced low-light aiming
✔️ Reduced parallax vs. iron sights
✔️ Easier shooting for aging eyes
✔️ Sleek integration for concealed carry
Glock 43 red dots paired with a low-profile slide cut give you a true co-witness setup—no adapters or excessive height needed.
🛠 How to Install a Slide Cut Glock 43 Slide
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Remove your factory slide from the Glock 43 or 43X frame
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Swap internal parts (barrel, guide rod, striker, etc.) to the new slide
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Mount your red dot using screws provided (torque to spec: 15 in/lbs)
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Zero your optic and check iron sight alignment
✅ No gunsmithing required. No wait times. Just plug-and-play.
❓ FAQs – Glock 43 Slide Cut for Red Dot
What red dots fit an RMSc cut slide?
Shield RMSc, Holosun 407K, 507K, Swampfox Sentinel, and Sig Romeo Zero all share the RMSc footprint.
What’s the difference between RMR and RMRcc?
The RMRcc is a slimmer version of the Trijicon RMR, designed specifically for slim-frame pistols like the Glock 43. Standard RMRs are too wide for G43 slides.
Do these slides come ready to install?
Yes. All slides we carry are pre-cut, finished, and ready to drop in. Optic screws and cover plates are included.
Can I co-witness with my iron sights?
Yes. Use suppressor-height iron sights for lower 1/3 or absolute co-witness, depending on the optic used.
🛒 Shop Glock 43 Slides With Red Dot Cuts
At Mounts Plus, we offer precision-engineered Glock 43 and 43X red dot-ready slides that meet the needs of EDC, range, and tactical shooters.
✅ Holosun, Shield, Trijicon compatible
✅ Available in OD Green, FDE, and Black Nitride
✅ In-stock and ready to ship – no long wait times
✅ Easy returns, fast U.S. shipping