Review of Frenzy FA 1x16x24 Red Dot Sight (SCRD-83)

2026-03-24

This is a review of Frenzy FA 1x16x24 Red Dot Sight (SCRD-83) from Jani Nordman.

Finally, we have options to skip the optics plate and just directly mount the red dot on the slide. This version will be for Walther PDP 2.0.

Benefits

Why is the direct mount better than having a mount? First thing is the obvious money saving, as the adapter plates cost you a lot of money, some places they go anywhere from 50$ to 90$, depending on the region, taxes, etc, but generally around that amount. Of course, you might find them on questionable sites or platforms for “cheap” but generally, cheap doesn’t equal quality.

The second benefit is that you have one less failure point. I can tell you, having been involved in sport shooting for multiple years (close to 10 years and 20 years in the firearm circles), that optics adapter plates are not rock solid, or even in some cases good. There are even manufacturers that have plastic adapter plates, so this eliminates one less thing to fail by directly mounting to the frame using the pattern of the adapter plate.

The third positive aspect of this mounting style is that the optics sit very low, meaning you get the added safety of seeing the iron sights through the red dot, so if the optic ever fails, you’ll still have sight to fall back on.

Glass

Window size is 16mm x 24mm, this is a little bit too small, meaning you could have easily pushed it to the 20x24 window size and get some more height out of the optic. But of course, this is a subjective point as what works for me might not work for you. Glass clarity is on point, no colour shift on any part of the window, and the distortion is the usual amount, not too distracting.

The dot

You get a crisp, clear dot, size is 3 MOA, so if that is your preferred size, you’re in luck, as you don’t get any other choice, no other sizes or colours available. More on that at the final thoughts. Illumination levels are decent, daylight visible, but you might struggle in direct sunlight if the sun is low and in front.

Features

The battery compartment is where it should be, on the side with two screws. The battery is the smaller version of CR1632, with a robust mount, so I don’t think there will be any issues with the battery compartment. Also, you get replacement screws in the box, as they are easy to lose.

The windage and elevation are controlled via a small flat-head screwdriver. My only pet peeve is that the size is so small that none of my other optics' small screwdrivers fit, and spent casing is too small, so you’ll need to have a specific small one for this if you need to adjust.

Buttons are big and tactile, so adjusting is easy even on the move.

Motion sensor with auto shutoff so you don’t have to turn off or on the optic, saving you battery.

Fit

As you can see from the pictures and the video, the fit to the slide is very tight, so I don’t think there will be any issues with movement during firing, but my 10.000 round test will be the judge for this. I’ll follow up if issues arise.

!NOTE! You cannot use this with Walther PDP 1.0; this only works with the 2.0 optic cut, see pictures for reference.

Final thoughts

This and the other straight-to-OR slide-mounted red dots are a welcome addition to Vector Optics' inventory and will be popular amongst the wider shooting community.

Positives

+ Direct mount (optic is as low as it gets)

+ Battery compartment on the side

+ Big buttons for illumination

+ Good fit to slide on both models

+ Lifetime warranty

+ Affordable price

+ Waterproof IPX7

+ 7075-T6 aluminium

Negatives

- Only one red dot size available

- Small adjustment slots for windage and elevation