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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:
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Holosun 407k, 507k
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Holosun EPS / EPS Carry
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ADE RD3-018 SPIKE, RD3-021 NUWA
Also compatible (RMS / RMSc footprint):
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Burris FastFire C
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Leupold DeltaPoint Pro
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JP Enterprises JPoint
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Sig Sauer Romeo 1, Romeo X, Romeo Zero
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Swampfox Sentinel
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Shield RMS / RMSc / RMSw / SMS
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Riton X3 Tactix MPRD / MPRD2
Mounts to:
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Any firearm with a Picatinny or Weaver rail (rifle, shotgun, or handgun).
Key specs
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Material: Aluminum (anodized)
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Finish: Matte black anodize
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Hardware: Includes two mounting screws
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Footprint: RMS / RMSc (fits Holosun 407k/507k, EPS, and other RMS-compatible dots)
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Mount interface: Picatinny / Weaver rail
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5 Reviews Hide Reviews Show Reviews
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Mounting plate
Works great and fit great
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Mount
Mount works well...Put ot on a 12 ga Mossberg 500 with a Crimson Trace Red Dot....Very sturdy
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Mounting plate
Affixed to the picatinny rail with no problem. The red dot fit precisely on the plate. Haven't had a chance to shoot the firearm yet so I really can't say much more
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Mounting plate
I don't have much experience with firearm optics. This one went on pretty easy with my Beretta U22 Neo. I wish some of the components were more flush and clean after install but I think this plate is more of a generic one for when you mount an optic that isn't manufacturer specific (?). It mounts very firmly/securely. The sig Romeo 2 I put on the plate mounted great. Sits a little taller than I'd like but whatever. If I cared that much I would have gotten a Beretta optic or something that direct mounts. I'd buy this again for another plinker but I don't think I would for a self defense or hunting platform. I'd get something cleaner and/or higher quality.
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Romeo Zero Picatinny mount
Very nice mount. High quality, nice finish. Fits Sig Romeo Zero perfectly