What red dots fit the Arex Delta Gen.2?
Page last updated . Data compiled September 2026 by Andrew Terrebonne.
49 of the 77 optics tracked here mount to this slide. This slide uses Arex Delta Gen.2 plate system.
No plate neededPlate neededDoesn’t fit
Mount systemArex Delta Gen.2 plate system
Optics that fit49 of 77
No plate needed0
Plate to buy49
Plate to slideper plate instructions
New to red dots? What footprint, plate, co-witness and the rest mean
Cheapest ways to mount it
How this slide mounts an opticCalculated Kinetics publishes a fitment chart for this slide: type 1 is Docter/Noblex, type 2 is RMR, and type 5 is RMSc and also takes the Holosun K family. There's no DeltaPoint Pro plate.
Every optic, and how it mounts
Adapter plates for the Arex Delta Gen.2
| Plate | Gives you | Source | Price |
|---|---|---|---|
| Delta Gen.2 optic plate — type 1Vortex Venom / Viper, Burris FastFire | Docter / Noblex | Aftermarket | $25–60 |
| Delta Gen.2 optic plate — type 2Trijicon RMR / SRO, Holosun 407C / 507C / 507COMP / 508T, Riton PRD, Swampfox Liberty / Justice | Trijicon RMR | Aftermarket | $25–60 |
| Delta Gen.2 optic plate — type 5Vortex Defender-CCW, Riton MPRD, and the Holosun 407K / 507K / EPS / EPS Carry / SCS Carry family | Shield RMSc Holosun K | Aftermarket | $25–60 |
GuidesSuppressor-height sights: will your irons co-witness? · Installing a red dot: what the makers say
Check a specific pairing
Open the fit checker with this pistol selected, or click any "how it mounts" cell above for that pairing's verdict and build sheet.
Deciding between a few? Compare 3 popular optics on this slide side by side: window, weight, emitter, cost to mount and co-witness.
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