What red dots fit the Smith & Wesson M&P 5.7?
Page last updated . Data compiled September 2026 by Andrew Terrebonne.
22 of the 77 optics tracked here mount to this slide, and 22 of those need no adapter plate. This slide uses S&W M&P 5.7 direct cut.
No plate neededPlate neededDoesn’t fit
Mount systemS&W M&P 5.7 direct cut
Optics that fit22 of 77
No plate needed22
Slide tapped#6-32 × 1/2 in
New to red dots? What footprint, plate, co-witness and the rest mean
Screw thread trapDocumented as #6-32 × 1/2 in for Holosun K optics, a different thread from either GLOCK slim cut despite the similar footprint.
Cheapest ways to mount it
How this slide mounts an opticModified RMSc cut: two forward recoil lugs, none at the rear. No plate, and none is needed.
Every optic, and how it mounts
GuidesShield RMSc vs Holosun K: which optic fits which cut · Suppressor-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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