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Glock 42 Red Dot Sight | RMSc Optics from Holosun, Shield & Trijicon
Glock 42 Red Dot Sights – Micro Optics for Maximum Precision
Looking to boost your accuracy and target acquisition with your Glock 42? Adding a red dot sight transforms this slimline .380 into a precision platform for self-defense, EDC, or range use.
At Mounts Plus, we offer a curated lineup of Glock 42 red dot sights from the top names in carry optics—Trijicon, Holosun, Shield, Leupold, Meprolight, and more. These RMSc-compatible red dots are built for micro-compact pistols and trusted by professionals and civilians alike.
🔥 Best Glock 42 Red Dot Sights
| Brand & Model | Footprint | MOA | Features | Price |
|---|---|---|---|---|
| Trijicon RMRcc 3.25/6.5 MOA | Custom | 3.25/6.5 | Slim profile, rugged, ideal for carry | $399.99 |
| Holosun HS507K X2 / HE507K-GR X2 | RMSc | 2 MOA | Shake Awake, multi-reticle system | $295–$319 |
| Shield RMSc Glass Edition | RMSc | 4–8 MOA | Ultra-compact, lightweight, crisp dot | $349–$379 |
| Leupold DeltaPoint Micro | Rear-sight | 3 MOA | Replaces rear sight, minimal slide mods | $399.99 |
| Bushnell RXU-200 Ultra-Compact | RMSc | 6 MOA | Affordable, rugged, auto-on | $199.99 |
💡 Note: The Glock 42 is not factory optics-ready. A custom-milled slide or rear-sight red dot (like the Leupold DeltaPoint Micro) is required for installation.
✅ Why Upgrade Your Glock 42 with a Red Dot?
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🎯 Faster Target Acquisition – Align your shot instantly under stress
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👁 Keep Both Eyes Open – Maintain full field of view while aiming
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💡 Low-Light Advantage – Clear aiming point even in poor lighting
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🔧 Ideal for Aging Eyes – Larger MOA dots are easier to pick up
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⚖️ Slim & Lightweight – Built for micro pistols like the Glock 42
🛠 How to Mount a Red Dot on Your Glock 42
Because the Glock 42 doesn't ship optics-ready, here are your best options:
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Use a rear-sight replacement like the Leupold DeltaPoint Micro
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Have your slide milled for an RMSc footprint (Shield, Holosun, etc.)
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Replace your slide with a pre-cut aftermarket slide (Zev, Brownells, etc.)
🔧 We recommend professional installation for milling or mounting to ensure alignment and co-witness options.
💬 Glock 42 Red Dot Sight FAQs
Q: Can I mount a red dot on a stock Glock 42?
A: Not directly. You’ll need either a milled slide or a mounting solution like the Leupold DeltaPoint Micro that replaces your rear sight.
Q: What’s the best red dot footprint for Glock 42?
A: The RMSc footprint is the most popular and compact. It’s used by Shield RMSc, Holosun K series, Mepro, and more.
Q: Is it worth putting a red dot on a Glock 42?
A: Absolutely. Red dots offer faster acquisition and better accuracy—especially useful for self-defense and shooters with aging eyes.
Q: What dot size is best for a red dot on Glock 42?
A: For concealed carry, 3–6 MOA is ideal. Larger dots are faster to acquire in defensive situations.
🔗 Related Glock 42 Gear
🚀 Why Mounts Plus?
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✅ Top Brands + RMSc Expertise
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🛠 Glock 42 Compatibility Guidance
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💬 Customer Support from Real Shooters
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📦 Fast Shipping, Easy Returns
🛒 Upgrade to a Red Dot on Your Glock 42
Turn your slimline Glock into a modern carry powerhouse with a precision Glock 42 red dot sight. Whether you want Trijicon toughness, Holosun tech, or Shield simplicity—Mounts Plus has the optics to match your mission.
👉 Shop Glock 42 Red Dot Sights Now – In Stock & Shipping Fast