Chad Wallace

July 4, 2026

Optics, Review, Gear

ZeroTech Thrive HD 1x Prism

Chad Wallace

July 4, 2026

Optics, Review, Gear

ZeroTech Thrive HD

1x Prism Review

If you did not already know, ZeroTech Optics has a 1x prism. ZeroTech has recently expanded the Thrive HD 1x Micro Prism with a Flat Dark Earth version. Since I really like prism optics, I had to get one and see how it compared. Plus, the FDE version caught my eye and looks really nice.

As with most prism sights nowadays, the Thrive HD comes with all the normal features. You get soft touch buttons. A side load battery tray. An adjustable diopter so you can see the illuminated reticle clearly. It specs out a 50,000 hour battery life with an auto awake/sleep feature. Plus it comes with a nice little neoprene cover, which I have misplaced.

The Thrive HD prism comes with a pretty standard style reticle. It is a large circle dot etched reticle style with short lines that break up the circle every 90 degrees. It works well for getting on target fast, but does have a few shortcomings. The dot portion of the reticle uses a nice 3 moa dot. The dot gives a good compromise between speed and accuracy. Since the circle portion of the reticle is large, 110 moa, it limits its use on something like an AR style rifle. I say this because there are no good reticle marks for height over bore at 5-10 yards. However, with the dot sighted in at 100 yds, the lower stadia and circle are good for 500-600 yard shots. If you install the prism on a pcc or something that you are only shooting out to 100 yards, just sight the dot in at 25 or 50 and call it good. The Thrive HD is still a good all around 1x prism.

As mentioned previously, the Thrive HD has all the latest tech. Shake awake, 50k battery life, easy battery changes, and soft buttons. It also has red illumination for the etched reticle. There are 13 illumination settings, so you can get it as bright or as dim as you like. Even though it is technically not a daylight bright reticle. It is bright enough to be seen on most days, unless the sun is fairly bright. But since the reticle is etched, you will always see the black reticle, even if your battery dies or you decide to aim at the sun.

Even though the ZeroTech Thrive HD prism is stated to be 1 power, it is not. This is my biggest complaint. It is more like a 1.1-1.2 power optic. This makes you see a double image if you try to look at something close up, with both eyes open. As you get farther out in distance, it is not noticeable. With anything closer than 20 yards, I had to close my non-dominant eye so it didn’t bother me. Besides that, the Thrive HD prism is super clear. I wonder since it is so clear, if that is why, at close distances, I see a slightly magnified image? The 20mm objective lens gives decent light transmission. It also makes finding the reticle fairly easy.

The Thrive HD 1x Prism is in the new style of prism optics. This makes it possible to use back up iron sights. Yes, you can see the sights through the prism, even if they are a tiny bit fuzzy with the Thrive. The other big advantage to these new prisms is that you can put a magnifier behind them, thus giving you more magnification.

When you think about prism optics, weight might be a concern. The Thrive HD tips the scales at 7.55 ounces. This is right in line with other prism sights. A big advantage to the Thrive HD is that it comes with 4 different mounting height options in the box. If one of these heights doesn’t fit you, the Thrive HD is compatible with Aimpoint T2 footprints. Thus giving you endless mounting options.

When testing the Thrive HD prism I mounted it on the MAC IX. I figured this would be a good platform for it, and it was. This also helped show me the not true 1 power magnification. I will probably mount it on a rifle at a later date, since I only use the MAC for closer in shooting. I really liked that it came with a bunch of different height mounts, especially since the brace on the MAC sits a little lower than an AR stock. Part of the reason I like prism optics is that the etched reticle doesn’t flare out because of my astigmatism. The Thrive HD prism’s reticle is super clear for me. I also like the auto awake feature. Not just because it extends battery life, but because I don’t have to remember to turn it off or on. Lastly, the FDE color on the prism looks more burnt bronze to me. I actually like the color. Besides, it adds another shade of FDE to the already 50 shades out there.

The ZeroTech Thrive HD 1x prism, in FDE, is a nice optic. It is super clear and bright. Even if it really isn’t a true 1x power, it is still a nice prism optic. It comes with everything needed to mount it up, sight it in, and go blast some trash. So if you are looking for a new prism sight, take a look through the Thrive HD 1x Prism and see what you think.

Firearms Insider Reviews - Key Points

Claim to Fame:

1 power prism optic with etched reticle and auto on/off

Target Market:

Rifle shooters, competition shooters, hunters, and just general plinking

Features, Benefits, and Specifications of this product:

Magnification: 1x
Footprint: Aimpoint Micro (T1/T2) Compatible
Objective Lens Diameter: 20mm
Reticle type: Etched, Illuminated Prism Dot
Brightness Settings: 13
Controls: Soft buttons on top of optic
Auto Sleep/Auto ON
Illumination: Red
Battery: CR2032
Battery Life: Max 50000 Hours
Turret Index Value: 1 MOA
Windage/Elevation Adjustment: 100 MOA
Material: 6061 T6 Aluminum
Eye Relief: 3.5in (90mm)
Field Of View: 70ft / 23m
Lens Coating: Full Multi Coated
Operational Temperature: -20°C to 70°C (-4°F to 158°F)
Parallax Adjustment Range: Fixed – 100m (110yd)
Weight: 7.55oz (214g)
Color: FDE
Waterproof Rating: IPX7
Comes with 3 different height mounts

What other aesthetic options or finishes are available?

Original Black

What others are saying?:

4 out of 5 stars on OpticsPlanet

Very solid optic

Really like the reticle. Very eotech like but for people with eye shortcomings. Mount options are cool but the screws are garbage. Came loose on me twice at the range. Now I have to just get an aimpoint mount. I think this is an awesome start. I’d like to see a new gen with a better mount obviously and maybe 25mm with better glass. Even if it’s around the 300-350 msrp. It would rival aimpoint and many other gold standard optics. Definitely recommend though.

Link to other reviews:

Woody Outdoors (in Australia)

Price point:

MSRP = $299.00

Retail = $239.20 with code “GGR” for 20% off

I need it now! Availability:

ZeroTech Optics use code “GGR” for 20% off

Our Rating:

Pros:

Super Clear
Multiple mount heights included
T1/T2 footprint compatibility
Bright etched reticle

Cons:

Not true 1x
More Bronze color than FDE
Larger circle doesn’t suit AR15’s for close range

Score: 7.50 Good

Favorite Link: ZeroTech Thrive HD 1-8x24 Review

Chad Wallace

May 17, 2026

Optics, review

Primary Arms PLx 1-8x24 RDB

Chad Wallace

May 17, 2026

Optics, review

Primary Arms PLxC

1-8x24 RDB LPVO Review

The PLx series from Primary Arms Optics is their top tier “premier” optic line. Recently they updated their PLx Low Power Variable Optics (LPVO) with “Red Dot Bright” illuminated reticles, or RDB as they call it. They sent over one of the PLx 1-8x24 RDB with the ACSS Raptor G2 reticle. This is their first focal plane (FFP) reticle for 5.56/308 that has ranging capabilities. Is it perfect? No, but it does have some fantastic features.

When you first see the Primary Arms PLx 1-8 you notice it. The lines are very sleek. It is not a target scope with huge turrets. Which is what you would expect from a LPVO. It is compact when compared to some other FFP optics in this tier. It is also fairly lightweight. All the controls are easy to get to and function better than expected. Then there is the super clear glass.

First, I am jumping right into the reticle. The PLx 1-8 has 2 different reticle options: The ACSS Griffin MIL G2 and the ACSS Raptor 5.56/.308 Yard G2. I opted for the ACSS Raptor reticle, the Griffin is more of a standard MIL reticle and I wanted something where I didn’t have to think too much for bullet drop. Both are FFP reticles and get larger when you zoom in. This is because all markings on the reticles stay the same actual size for ranging and bullet drop compensation.

The ACSS (Advanced Combined Sighting System) Raptor reticle was designed primarily for 223/5.56 rifles, but it also will work on 308 rifles. I will explain it for 5.56. The Raptor is a Bullet Drop Compensating (BDC) reticle that also does range estimation and has MIL markings. Pointing toward the center reticle are 3 solid lines, these can only be seen between 1x and 2x. When zoomed in past that, you only see the inner reticles. There are then MIL marked lines toward the inner most BDC reticle. The inner BDC reticle is where all the magic happens.

The Raptor BDC part of the reticle allows one to range targets and adapt for wind. In the very center is the horseshoe chevron reticle. The horseshoe is roughly 2.5 MIL’s in diameter and then has a small center chevron (open triangle). You sight in at the top point of the chevron. This gives a very precise aiming point. The BDC marks are then below the chevron marked with 4,6, & 8. These numbers are in yards for bullet drop. The bottom of the chevron would be 200 yards and the top vertical stadia mark would be 300. This mark is also at the bottom of the horseshoe. There are wind holds, or lead dots, for 5, 10, & 15 MPH at the BDC ranges. Horizontal to the horseshoe are 3 more dots. These are for leading a target also, but they are 3, 6, & 9 MPH which corresponds to a human's walk, jog, and run.

Simplified ranging can also be done with the ACSS Raptor reticle. In the reticle, on each side going toward the outside, are vertical lines. These lines get larger as you move toward the outside of the reticle. There are 5 lines with a number on every other one. The numbers designate a range in hundreds, so the #6 represents 600 yards. These lines fit an average height person. So if the person fits perfectly in the #4 line, you know they are at approximately 400 yards. To take the ranging one step farther in the Raptor reticle, there are also width ranging lines that run down the vertical BDC marks. These horizontal small lines are used to measure a 18 inch wide target, like a USPSA one. Or the average width of a human torso. Essentially you use it the same way as the height ones. Fit the target in the proper line, say the #6 line, and you know the target is at approximately 600 yards. The ranging is actually pretty easy, once you get the hang of it.

Now that you know about the reticle, let’s adjust it. The PLx comes with capped turrets. This helps with the low profile of the 1-8. The turret covers are about 1.5 inches in diameter and have pretty sharp knurling on them. So it is easy to unscrew them, even with thick gloves on. Inside those covers are the turrets themselves. They are about 1.375 inches in diameter with aggressive texture on the top to aid in adjustment. Both windage and elevation turrets adjust in 0.1 MIL increments.and go 10 MIL’s per complete revolution. The windage knob has numbers with both and R & L so you know which way you went. Of course the elevation knob has numbers 0-9, the 10 being the zero again. Both knobs have 3 tiny screws that hold the knobs in place. Once you have sighted in the optic, loosen the screws on the turrets and adjust it to the zero position, then re-tighten the screws. Primary Arms also includes a target style elevation turret. So if you want an adjustable turret without having to take off the cap, you can install it. I say target style because there is no cap, the target turret is still low profile in design. The actual adjustment clicks on the PLx are fantastic. Not only are they solid, but there is very little play when turning them from click to click. They aren’t as audible as you might think, but since they are super tactile, I do not care. The turret adjustments are steel on steel gears. This is one thing that sets higher tier optics above the cheaper ones. Plus they don’t wear out as quickly and return to zero with no error.

The PLx 1-8’s red illumination is bright. That is why it has the RDB label, it stands for “red dot bright”. I can attest that with the new technology Primary Arms is using, this reticle is super bright. Yes, it can be seen in direct sunlight, easily. With the reticle at 1x, it really can be used as a red dot and even kind of looks like one, because the horseshoe ends up looking like a bright red dot. When you zoom in to 8x, it is still just as bright, but does have some problems. If you look at all the info on the RDB, it shows only the horseshoe and chevron being illuminated. The problem with high brightness and magnification is that the small lines and numbers become tiny illuminated dots. It muddies up the reticle in my opinion. Turning down the reticle's brightness does help. I have a non RDB Primary Arms LPVO that does this a little bit also, so it’s not just the PLx line. Along with the illumination, the PLx 1-8 also has Primary Arms’ Autolive feature. This is their shake away auto on/off for the reticle. It helps save battery life and works fantastic. The battery is housed inside the brightness knob. There are 10 brightness settings with an off position between each one. Each setting has a positive detent to keep it in place.

How clear is the PLx 1-8? I'd say near perfect thanks to the Japanese ED glass that is used. Light transmission is also fantastic. The clarity is where you really notice the quality of the glass. I can't really explain it, it's just clear with no edge distortion. Eye relief is pretty decent and forgiving, even at 8x. I can look through this optic without the eye strain I get from lower tiered optics.

The PLx 1-8 also has a nice magnification adjuster. It is nicely knurled and super smooth to adjust. It also comes with a removable throw lever. These throw levers can be swapped for shorter, taller, or folding ones, but they have to be purchased separately. Either way, the throw lever on the magnification ring works nice and is the perfect height.

I ended up installing the PLx 1-8 RDB on a Flat Dark Earth 16 inch AR build. This AR has a bunch of high quality parts on and in it, so I figured it would be a great host for the PLx. Also having the 16 inch barrel puts the optic in its sweet spot for the BDC. Primary Arms also sent one of their 2.04 PLx mounts for the scope. I wasn’t sure if I would like the 2.04 mount at first, but it is kind of nice. Okay, back to the PLx 1-8. I do like that this optic is made in Japan and not China. Japan has some of the clearest optic glass around and it really shows in the clarity of the PLx. I also really liked that the PLx weighs just over a pound. It would be nice if the PLx 1-8 could have a zero stop in the turret. It may not be that “type” of scope, but a zero stop would be a good addition. The anodizing color is close to FDE, but looks more bronze colored to me. This is just another reason why we have 50 shades of FDE. The bullet drops from the Raptor reticle seemed close enough for me. This is more of a fighting optic for me, not a precision one, which is why I like the ACSS Raptor reticle. Of course, having the autolive illumination makes the LPVO ready whenever you are. The Primary Arms PLx 1-8 is a fantastic optic with a very useable magnification range.

If you are looking for a LPVO that really does it all, check out the Primary Arms PLxC 1-8x24 FFP RDB scope. There is a good reason this thing is in Primary Arms’ Premier line of optics. It has fantastic clarity, a sunny daylight bright reticle, and can be used both as a red dot and something for distance. If you are interested, head over to Primary Arms and take a look at the PLx 1-8x24 RDB with the ACSS Raptor G2 reticle.

Firearms Insider Reviews - Key Points

Claim to Fame:

Top tier LPVO

Target Market:

Those needing a rugged, precise, super clear LPVO with useable features

Features, Benefits, and Specifications of this product:

Red Dot Bright Diffractive Reticle technology
ACSS Raptor 5.56/.308 Yard G2 Reticle
Premium grade Japanese ED glass with enhanced clarity and light transmission
First focal plane reticles stay true at every magnification
High strength 30mm tube
Easy to swap dovetail throw lever
1-8x magnification range is red dot fast in close quarters and accurate at medium range
AutoLive Motion-Sensing illumination technology
Steel On Steel (SOS®) Adjustable turrets
Adjustable illumination from Daylight bright to night vision compatible
Water proof, shock resistant, and fog resistant
Durable hardcoat anodized flat dark earth finish
Made in Japan
Battery Type: CR2032 3V Lithium
Click Value: 0.1 Mil
Exit Pupil Diameter: Low: 8mm / High: 3mm
Eye Relief: Low: 3.2 in / High: 3.7 in
Field View 100: Low: 121 ft / High: 14.6 ft
Length: 9.28 in.
Night Vision Compatible
Objective Diameter: 24mm
Total Elevation Adjustment: 100 MOA
Total Windage Adjustment: 100 MOA
Capped Turrets
Weight: 16.95 oz.
Lifetime warranty

What other aesthetic options or finishes are available?

Griffin Mil G2 reticle in black or FDE

What others are saying?:

5 out 5 stars on Optic Planet

As good as it gets

Got this on a sale and paid just under 1500 after tax and shipping. For the price, you won't find a better LPVO. This thing rocks. Got the ACSS Raptor reticle as I'm running this on a 14.5 super duty and prefer the 50yd zero and ballistic drop reticle over the Griffin. Glass clarity is superb all through magnification range. And yes, this thing is absolutely red dot bright even on 7/10 setting. Maybe at high noon on a glacier you would need to go higher than 8/10 on the illumination setting. Don't bother getting scope rings with this as you will do away with the near invisible scope feature when you're at the lower magnification settings. That is also an amazing thing about this scope: at 1x, with both eyes open, the scope itself is barely perceptible when looking at your targets. Once you get the diopter adjusted to your eye (both eyes open!) there is no noticeable shift in your view when taking turns closing each eye to see the shift.