C&H Precision RMR to Holosun 407K / 507K Adapter Plate
Not Yet Rated | Write the First Review SKU: 222-C&H-RMR-HOLOK
UPC: 616943732214
MFG#: RMR-HOLOK

RMR to Holosun 407K / 507K Adapter Plate – CHPWS

Mount your Holosun 407K, 507K, or compatible red dot to any RMR footprint slide with unmatched precision and strength.

If you're running a slide with an RMR footprint but want to use a Holosun K-series optic like the 407K, 507K, or one of our own C&H EDC red dots, you need a plate that delivers more than just basic fitment. You need tight tolerances, secure thread engagement, and proven durability — and that’s exactly what this adapter delivers.

🔧 Why Choose This Adapter Plate?

• ✅ Direct Fit for RMR Footprint Slides
  Designed to convert your RMR-cut slide to fit Holosun 407K / 507K, C&H EDC & EDC Enclosed, and Olight Osight S optics.

• ✅ Patented Stainless Steel T-Post System
  Our industry-leading design provides 6–7 full threads of engagement — far superior to shallow-thread aluminum plates.

• ✅ CNC Machined in the USA
  Built from premium-grade materials on HAAS CNC machines at our Georgia facility. Every plate is individually quality-checked before shipping.

• ✅ Low-Profile Mounting
  Keeps your optic seated low for ideal co-witness height with standard suppressor sights.

• ✅ All Hardware Included
  Ships with the necessary screws and mounting hardware — no guesswork, no extras needed.

⚠️ Note: This plate is not compatible with slides that have ZEV recoil posts. If your slide has ZEV posts, you’ll need to have them removed before installation.

📦 Specifications

🧰 What’s In the Box

• 1x RMR to Holosun K-series Adapter Plate

• 3x M3H Screws (for optic mounting)

• 2x Plate Mounting Screws

• 1x CHPWS T-Post Mount System

• Installation instructions & torque specs

🔫 Who It’s For

• Custom pistol builders

• EDC & duty carry users

• Law enforcement & military operators

• Competition shooters running K-series optics on RMR slides

This isn’t a generic overseas plate. It’s precision fitment from one of the most trusted names in red dot mounting systems — CHPWS.

❓ Frequently Asked Questions (FAQ)

Will this plate let me mount a Holosun 507K to an RMR slide?

Yes — that’s exactly what it’s designed for. It adapts a standard RMR footprint slide to accept the Holosun 507K or 407K.

Is this compatible with Olight Osight S or C&H EDC optics?

Yes. This plate supports both optics, as long as the mounting footprint matches the Holosun K series.

What’s the difference between this and cheaper plates online?

Our patented T-Post design uses stainless steel for stronger, deeper thread engagement. Most cheaper plates rely on shallow aluminum threading that can strip under recoil.

Can I use this plate on a ZEV RMR-cut slide?

Not directly. ZEV slides have recoil posts that interfere with proper fitment. You’ll need those posts removed to use this plate.

Does it come with all screws and mounting hardware?

Yes. Everything you need to install your red dot (except tools) is included in the package.