Sig P229 Optics Plates – Mount RMR, Holosun, Acro & More

If you’ve got a Sig P229 RX, Legion, or Pro Cut and you’re ready to upgrade to a red dot sight — the right optic plate makes all the difference. Whether you're running a Trijicon RMR, Holosun 507K, or Aimpoint Acro, our precision plates ensure rock-solid fitment and alignment for fast, confident shooting.

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🔧 Optic Plates for SIG P229 RX & Legion

These aren’t generic mounts — they’re model-specific adapter plates designed to fit factory optics-ready Sig P229 slides. Simply remove the factory cover plate and install the adapter matched to your optic’s footprint.

We stock rugged steel and aluminum plates from C&H Precision, known for trusted performance and flawless machining. Each plate is engineered to provide the correct height, recoil lug engagement, and screw depth — no modifications required.

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✅ Available P229 Optic Plates

🔹 Trijicon RMR & Holosun 407C / 507C
🔹 Holosun 507K & 407K
🔹 Holosun 509T (enclosed emitter)
🔹 Aimpoint Acro

Not sure what footprint your optic uses? Check the product details or reach out — we’re happy to help match you up.

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🛠️ Why Upgrade Your P229 With a Red Dot?

Red dots offer faster target acquisition, better visibility in low light, and increased accuracy at speed. With the right plate, your P229 RX or Legion becomes a modern, capable pistol ready for range, carry, or duty use.

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🔄 Compatibility: What Models These Plates Fit

• Sig P229 RX Series

• Sig P229 Legion RX

• Sig P229 Pro Cut Optic Ready

• ⚠️ These plates do not fit standard (non-optics-ready) P229 slides.

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🛒 What’s Included

• Precision-machined adapter plate

• Mounting screws and hardware

• Instructions or installation notes

• Expert product support if needed

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💡 Installation Tips

• Remove your factory plate using a properly sized Torx bit

• Clean threads and apply blue threadlocker (Loctite 242)

• Torque to manufacturer spec

• Allow adhesive to cure before live fire

Install can be done at home in minutes — no gunsmith needed.

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❓ FAQ

Q: Will these plates fit a standard Sig P229 (non-optic-ready)?
A: No. These are designed specifically for factory optic-ready slides like the P229 RX, Legion RX, and Pro Cut models.

Q: What red dot sights are compatible with your plates?
A: We offer plates for Trijicon RMR, Holosun 507K, 507C, 509T, Aimpoint Acro, and more. Check the product listing for full compatibility.

Q: Do I need suppressor-height sights with these plates?
A: It depends on your red dot. Some setups allow partial co-witness with standard-height sights, but suppressor-height irons are recommended for full co-witness.

Q: Are these plates steel or aluminum?
A: Most plates are CNC-machined steel for durability. Some lightweight models are hard-anodized aluminum. Each product listing notes the material.

Q: Can I install these myself?
A: Yes — installation is straightforward. All hardware is included, and we provide torque specs and support if you need help.

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🛒 Ready to Upgrade?

Your Sig P229 RX deserves more than a factory blank plate. Unlock its full potential with a precision-fit optic adapter and run the red dot that fits your style.