The ADE Picatinny optic adapter provides a secure, low-profile interface between popular compact red-dot sights and any firearm equipped with a Picatinny or Weaver rail. Designed specifically for Holosun 407k / 507k and Holosun EPS / EPS Carry, it also accepts optics using the RMS / RMSc footprint.
Machined from high-strength aluminum and finished in matte black anodize, the adapter is built for durability and precise alignment. Two mounting screws are included for fast installation on standard Picatinny/Weaver rails — suitable for rifles, shotguns, and handguns equipped with those rails.
Key use: Attach your RMS-compatible red dot directly to a Picatinny/Weaver rail for reliable performance and repeatable zero.
Compatibility (clear list)
Direct fit / Designed for:
-
Holosun 407k, 507k
-
Holosun EPS / EPS Carry
-
ADE RD3-018 SPIKE, RD3-021 NUWA
Also compatible (RMS / RMSc footprint):
-
Burris FastFire C
-
Leupold DeltaPoint Pro
-
JP Enterprises JPoint
-
Sig Sauer Romeo 1, Romeo X, Romeo Zero
-
Swampfox Sentinel
-
Shield RMS / RMSc / RMSw / SMS
-
Riton X3 Tactix MPRD / MPRD2
Mounts to:
-
Any firearm with a Picatinny or Weaver rail (rifle, shotgun, or handgun).
Key specs
-
Material: Aluminum (anodized)
-
Finish: Matte black anodize
-
Hardware: Includes two mounting screws
-
Footprint: RMS / RMSc (fits Holosun 407k/507k, EPS, and other RMS-compatible dots)
-
Mount interface: Picatinny / Weaver rail
9 Reviews Hide Reviews Show Reviews
-
Picatinny/Weaver Mtg. Plate for 507K Holosun
Great product! Fits the footprint for the 507K perfectly. NO issues.
-
Great sight
Great sight
-
Weaver picatinny rail mouny
Fit on my Browning Buckmark Contour 5.5 perfect. The Holosun 507k also fit just right. Made an accurate gun even better
-
PICATINNY/WEAVER MOUNTING PLATE DESIGNED EXCLUSIVELY TO FIT HOLOSUN 407K/507K RED DOT SIGHT
Set this up on an AR-15 with a Holoson 407K. It co-witnessed the back up iron sights perfectly. it held the Holoson tight to the mount and the mount to the pic rail on the AR. Very happy with this item!
-
Great mount
Fits perfect with the Holosun 407K. It looks great on my AR. Seems sturdy and snug on my rifle. We'll see how it holds up, but it shouldn't be an issue.
-
Perfect Fit
I needed a picatinny mount to install my Holosun to a PCC and this worked out perfectly!! Solid machining and fits like a champ. Plus it was $10-$15 cheaper than others like it. Definitely recommend checking them out!
-
Have never received product
Need help
-
Solid mount, but wrong screws.
The screws provided had heads that are too big and can’t be screwed down to install the optic. Optics Factory has said they are addressing the problem. Ask before you buy.
-
Unique product, exactly what I needed
After searching the internet for a proper mount I contacted Holosun and ADE. Who both recommend this product for my Holosun Red Dot. It came two days early, with extra screws for different setups. I would recommend this company and product
