Can You Put A Red Dot On A Beretta 92fs? [Updated 2023]

  • Post author:
  • Post category:Blog Content
  • Reading time:6 mins read
LTT RDO beretta red dot slide mount
Referenced LTT

Can You Put A Red Dot On A Beretta 92fs (M9)? It doesn't look like it can, but there are ways...

The easiest way is to use a Dovetail rear sight adapter, and we recommend the Sight Mount Gunsight

Langdon Tactical Technology LTTRDOSFF 92 Elite LTT Red Dot Ready Slide Beretta 92FS 9m

Another way is to buy a Langdon Tactical 92FS optic ready slide.

So, Let's check it out... 

M9 Optic Setup Options 2022

[New] Langdon Tactical Elite 92FS Optic Ready Slide

Thanks to Langdon Tactical for finally making a low mount Beretta 92FS slide available to the market in 2020.

It was a difficult upgrade, but Ernest Langdon at LTT has figured it out!

LTT RDO is the official name and you can check them out on Langdon Tactical's website here.

Upgrade challenges in the past - The original 92FS 's firing pin block protrudes out of the top of the slide. The extractor is long, situated high on the slide, and, it’s basically impossible to install a red dot into the slide like a Glock.

What we like about the LTT slide upgrade - Langdon Tactical trimmed the safety lever. In another word, they decided to sacrifice the rear sight dovetail to free up more slide real estate on top, and it incorporated an integral backup rear sight into the red dot's mounting plate.

  • The optic sits low compared to dovetail mount
  • No reliability compromise
  • 5 new redesigned parts:
  1. Firing pin & Firing pin block
  2. Extractor pin & Safety levers
  3. Safety plunger & additional red dot adapter plate.
LTT RDO 92FS Slide cut
Referenced Recoilweb
Langdon milled out the slide as low as possible (0.14 inches), leaving just enough material above the extractor channel, then modified the extractor pin accordingly.

They re-engineered the firing pin and firing pin block to take up less space, so that they can function properly underneath the mounting plate.

This places the red dot as low as physically possible in the Beretta 92 slide. LTT measured the distance from the center of the bore to the center of an RMR’s window at 0.85 inches.

Check out: Best Handgun Red Dot Optics

Sight Mount Gunsight Mount - 2nd Option

Beretta M9 Red Dot Sight Mount

The dovetail beretta 92fs red dot adapter mount replaces the rear iron sight without using the rail mount plate or milling the slide.

SightMount is a piece of Picatinny rail that replaces the rear sight assembly on the M9 slide. The difference is that the middle rail cross-section is cut for three-dot sight sight picture acquisition.

But the optic sits too high on the slide.

beretta m9 sight mount pictianny


  • Features:6061 T6, Dovetail Pictianny Mount
  • Benefits:Simple installation, Replaces rear iron sight, Pistol recoil proof

Other Beretta 92FS Optic Mounting Plates - 3rd Option

The following options are dovetailed adapters that require no milling on the slide at all. All of them are fitted to go on top of the slide and it doesn't conflict with the trigger block.

Make sure to use some Loctite to secure it on the slide.

Rail Mounted Beretta 92 Scope Adapter

This might NOT work for all the Beretta M9 series handguns. It will for the railed framed version such as M9A1, 96A1, M9A3.

The rail-mounted sight adapter will make your M9 handgun look like a competition pistol.

This concept is pretty popular even for other striker-fired pistols.

It reduces g-force on the red dot sight, and it allows better dot tracking for a faster followup shot.

Get Beretta 92X RDO Or Beretta M9A4

beretta 92X RDO full size

Referenced Beretta

The Beretta 92X RDO or the Beretta M9A4 are factory optic ready M9 series pistols.