Vector Optics Frenzy-S 1x17x20 (SCRD-M68) Review

This is a review of Frenzy-S 1x17x20 Red Dot Sight MRT Aspheric Lens EDC from Csaba Zoltán Laboncz .

Vector Optics calls this a new optic, but in a way it’s also an old friend. Why? Because it’s a refreshed version of a model they already had on the market—only now it’s been reworked into something even more practical. I spent some time with the original SCRD-68, so a lot of what I say here is based on that experience, with the updates and upgrades of this new version added in.

This model is the multireticle version of the SCRD-68. In plain terms, that means you’re not stuck with just a single dot—you can run a 3 MOA dot, a 36 MOA circle, or both at the same time. That’s a pretty slick feature, especially for shooters who like some flexibility.

Unboxing is exactly what I’ve come to expect from Vector these days: the new-style packaging, the little rifle-shaped tool, VIP warranty card, multiple sets of screws, a Weaver/Picatinny mount, and the optic itself. Clean, professional presentation.

The first thing that caught my attention was the size. I’ve used everything from oversized competition-only dots to standard “do-it-all” optics, and I’ve also spent time with defensive setups. The Frenzy-S falls right in the sweet spot between compact and mid-size. The housing is closer to compact, but thanks to the super-thin frame, the window is big enough to feel like a standard optic. That thin frame is tougher than it looks, too—I wasn’t gentle with it, and it held up without complaint. Even more interesting, this red dot runs a dual-lens system. That’s not common on pistol optics. You get an aspherical primary lens plus a rear protective lens, which makes it a sealed unit. The benefit? Dirt, sand, or rain can’t get in between the emitter and lens, so it stays usable no matter what environment you’re in.

The footprint is another important detail. Instead of the older RMR cut, Vector went with the now more popular RMSc footprint, which they call the “MGT” mount. That choice keeps the optic small while making it directly compatible with a lot of pistols on the market. For my test, we ran it on a PCC using the included Weaver mount. Having that mount in the box means you don’t need to buy extra hardware—a small thing that puts Vector ahead of some competitors.

Brightness is another area where Vector has stepped up. Even in full sun, the dot was easy to pick up for quick target transitions. You get 9 daylight settings and 2 night vision modes. The controls are simple—two rubber-coated buttons on the left side. They’re sized right, give a good click when pressed, and feel solid. Powering off is done by holding the down arrow. Brightness adjustments are straightforward.

What really surprised me were the windage and elevation turrets. The clicks are sharp and tactile, and the tool fits perfectly. In fact, the adjustment feel is better than what I’ve had on some much more expensive optics—yes, I’m talking about Shield.

Battery loading is side-mounted, so you don’t have to take the optic off your gun. It runs on a CR1620 cell, which is smaller than the more common CR2032, but that’s part of how they keep the size down.

The body is built from 7075-T6 aluminum, the same alloy used in AR-15 receivers and aerospace applications. It’s IP67-rated for water resistance and shock-rated to 1500G, so recoil isn’t going to be a problem.

Where does this optic fit in? Honestly, it’s versatile enough to work everywhere. For target shooting, the crisp 3 MOA dot and clear glass are excellent. For self-defense, the compact size and sealed design make it reliable in adverse conditions—you won’t have to worry about dirt or debris blocking the emitter. In fast-paced action shooting, sure, the smaller window can’t quite match the speed of a giant competition optic with a 6 MOA dot. But if you’ve got some skill, the Frenzy-S can absolutely hang in that environment too.

Vector also added a rear notch into the housing, so on certain setups it can still give you a co-witness option if your irons would otherwise be blocked by the optic. Design-wise, it looks good—smooth curves and sharp lines where they matter.

Like all of Vector’s higher-end optics, the Frenzy-S comes with their VIP lifetime warranty. The card’s in the box, just register it online and you’re covered for life.

And then there’s the price. As of August 2025, it’s selling in Europe for about €240–250. That’s roughly half the cost of similar optics from the big-name brands.

Bottom line: I can easily recommend the Frenzy-S 1x17x20 SCRD-M68. It’s tough, well thought out, versatile, and priced way below most of its competition. Vector has put together a red dot that works equally well on the range, for defense, or even in competition if you know what you’re doing.