autolive

Primary Arms PLx 1-8x24 RDB

 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.

Link to other reviews:

C_Does on YouTube

Price point:

MSRP = $1749.99

Retail = Same

I need it now! Availability:

Primary Arms, Midway USA, or your local shop

Our Rating:

Pros:

  • Red dot bright reticle

  • Ranging reticle

  • Super clear on 1x or 8x

  • Lightweight

  • Edge clarity

  • Smooth power adjustment

Cons:

  • FDE is more bronze’ish colored

  • No zero stop

Score: 9.00 Amazing

Primary Arms SLx MD-25 gen 2 red dot

  Primary Arms has updated their SLx MD-25 red dot optic to a Gen 2. The Gen 2 gives you all the great stuff as the first generation, but it now includes Primary Arms’ AutoLIve. With the added AutoLive function, this makes a great red dot for either a rifle or carbine. There are two versions available, one with just a red dot, or one with an ACSS reticle. I received the ACSS version, so everything here will be on the MD-25 Gen 2 with the ACSS CQB reticle. Most of the specifications, except the reticle, apply to the dot only version of the MD-25 Gen 2 also.

  Let’s start this out with an AutoLive explanation. The AutoLive function, of the MD-25 Gen 2, automatically turns the red dot “On” when you pick up or move the optic. It also turns the optic into a sleep, or “Off” mode, after a few minutes of no movement. A big advantage to an auto-on reticle/dot is that it is ready when you need it to be. The AutoLive also extends the battery life, since your optic isn’t “on” all the time. Whatever setting the brightness dial is set to, is the brightness that it turns on at. No readjusting necessary. I absolutely love the AutoLive function. Speaking of brightness, the MD-25 Gen 2 has 11 adjustments on a dial. From night vision compatible all the way up to super bright. The 2032 battery is also housed in the brightness dial. Primary Arms specs the battery life at 12000 hours on the medium setting, so 5 or 6 on the dial. Battery life might seem a little low to some people, but there is more information in the ACSS reticle. For comparison, the MD-25 Gen 2 dot only version has a 50000 hour battery life.

  This particular MD-25 Gen 2 has the ACSS CQB reticle. If you don’t know anything about the Primary Arms ACSS reticles, they are usually a horseshoe line around some sort of chevron (think triangle). The horseshoe on the Gen 2 measures 65 MOA. The chevron triangle sits inside the horseshoe and is used as your main aiming spot. For close up work, just cover the target with the chevron. For more precise work, use the top point of the chevron. The ACSS CQB then has three dots below the chevron. These dot’s are for ranging, as is the bottom of the chevron. The reticle can work with a few different common caliber options as seen in the photo. I like the ACSS CQB reticle, but it is pretty small, so it can be difficult to make out the aiming points for different ranges. The MD-25 Gen 2 is still a red dot style optic. So this means that the image is projected onto the viewing surface. It is not an etched reticle like a scope. This really only affects you if you have an astigmatism, which I do. So for me, the chevron “starbursts” out and looks more like a dot. This is just something to take into consideration. If you have decent vision, the reticle will be very clear. For my use, the MD-25 Gen 2 is not a long range optic, so this doesn’t bother me at all. When shooting real close targets, an advantage to the ACSS CQB reticle is that you can figure out how far above a target you need to aim, to compensate for mechanical offset. Those dots below the chevron, as well as the 65 MOA horseshoe, also help for aiming at those close targets. You don’t have this option with a standard dot only reticle, which is why I feel the ACSS CQB is a better reticle option for an AR rifle.

  The Gen 2 MD-25 is not one of those super tiny red dot optics. I’d say it is medium size. Not so small that it’s hard to see through, and not so large that it’s a tank sitting on your picatinny rail. It only measures 3” long, so almost half the length of those expensive “red dots”. The MD-25 uses 25 mm lenses, but the field of view is really good. Primary Arms says it rivals 30 mm red dots, and I believe it after looking through the MD-25. Even though the MD-25 isn’t a small red dot, it still only tips the scales at 6.5 ounces. It also comes with different mounting height options. So no matter what you put it on, you can get the sight right up to your eye level. If for some reason you don’t like the supplied mount, the MD-25 can be mounted on standard T1 And T2 micro mounts. 

  I’ve been really impressed with the MD-25 Gen 2. It is built super strong. I’m not sure I could break it if I tried. Even if I was to, it’s covered by Primary Arms’ lifetime warranty. The little capped turrets even have raised nubs to keep them protected. These protection nubs will also keep stuff from snagging on the turrets, or at least help. The little turret caps also are aggressively textured with an adjustment built into them for making sight adjustments. The mount is also super strong. Once clamped down, the MD-25 isn’t going anywhere. I wouldn’t hesitate to put this on a rifle that gets beat around some.

  If you are looking for a rugged red dot, that’s not a dot, look into the Primary Arms MD-25 Gen 2 ACSS. This thing is a great size for almost any rifle. It has a ranging type ACSS reticle that even works with a .22 lr. The AutoLive gives you plenty of battery life, over a years worth, and it makes the optic “always ready”. Go check out the SLx MD-25 Gen 2 over at Primary Arms, It’s a good red dot style sight with a unique reticle. 

Firearms Insider Reviews - 8 Key Points

Claim to Fame:

Larger window red dot 

Target Market:

Those wanting an auto on/off red dot with a ranging reticle

FNBs (Features & Benefits of this product):

  • AutoLive functionality

  • Wide field of view

  • ACSS CQB reticle

  • Up to 12,000 hour battery life at medium setting

  • Uses one CR2032 battery (included)

  • Next generation ruggedized mounting system

  • Includes risers and spacers for mounting to 0.96”, 1.41”, 1.54”, or 1.64” central height

  • Compatible with standard micro mounts

  • Fully multi-coated anti-reflective lenses

  • 12 Illumination settings, night vision compatible

  • 3" long

  • Weight - 6.5 Oz.

  • Fog resistant

  • 0.5 MOA adjustments

  • Lifetime Warranty 

What other aesthetic options or finishes are available?

Dot Only version

What others are saying?:

5/5 stars on Primaryarms.com

This is my 5th or 6th scope purchase from PA. I've never been disappointed yet, so when this one was announced I quickly put it on pre-order to replace a Vortex SPARC that I've never been happy with. I bought this to go on a home defense bullpup shotgun. It is fantastic for this purpose. The big outer circle, with the small aiming dot in the middle, is perfect for fast sight acquisition, and the shake-awake feature gives you one less thing to think about in a crisis situation. The included height adjustment plates let you tailor the height of the sight to your own weapon and preferences. Just another area where PA beats the competition in quality, value, and price. With eleven brightness settings on this reticle, you see it outside in the brightest sun, all the way down to night vision compatibility. I usually prefer green illumination over red, but this sight is extremely clear and my old eyes have no problems with it. - Highly recommended.

Link to other reviews:

Lynx Defense   

Price point:

MSRP = $199.99

Retail = Same, but Primary Arms runs sales quite often

I need it now! Availability:

Primary Arms

Our Rating:

Pros:

  • Clear

  • Bright, well lit, reticle

  • Autolive

  • Mounting options

  • Field of view due to larger physical size

  • 65 MOA circle of ACSS reticle

Cons:

  • Hard to see bullet drop compensation marks

  • Battery life compared to Red Dot version

Score:  8.00 Great

Favorite Link:  Walker Defense

Primary Arms SLx RS-10 red dot

  When I first learned about the new Primary Arms SLx RS-10 mini reflex sight, I was very interested. Then I received one, and was even more excited. This little, open reflex, pistol mounted red dot is everything they said it would be. Including a great price of $199.99.

Autolive in action

  The SLx RS-10 is packed with features. It runs a 3 MOA red dot that is easily picked up. It has 11 brightness settings. Of which include night vision compatibility and daylight bright. I couldn’t try out the night vision setting, but the daylight bright setting is really bright, even in direct sunlight. You should have zero problems seeing the dot in any light. The RS-10 also has easy to use controls on the left side. These buttons are only raised slightly above the RS-10’s surface. Of course they control brightness as well as actual on/off. I say “actual” because the RS-10 features Primary Arms’ “Autolive”. The Autolive is an automatic on/off function that works fantastic. Just barely move the sight and the dot turns on. After about 3 minutes of zero sight movement, the sight turns off. Any teeny movement will keep the RS-10 on. Back to the “actual” on/off. To turn the sight off, as if you are going to store it for a long time, just hold the up and down buttons simultaneously for a few seconds and the sight will permanently turn off. Then to turn it back on, and into the Autolive feature, just hold either the up or down button a few seconds until the dot turns on. Primary Arms specs the battery life at 40,000 hours with a CR2032 battery. So if you change the battery out once a year, you should be good to go and never have the dreaded dead dot. If you couldn’t tell, I really like the Autolive feature.

  Primary Arms also stuck some other features into the RS-10. For strength, they manufacture the housing out of 7075 aluminum. This is the same grade aluminum that quality AR receivers are made from, so it should be good to go. I really like the shape they chose for the housing and window. The rounded, almost square shape seems to draw my eye to the dot. I seem to find the dot much faster than other pistol mounted red dots. Primary Arms says the window size is 23mm and even if it is a smaller window than some brands, see the above comments. I mentioned battery life earlier, but the RS-10 does have a side loading battery tray. That means you can change the battery without having to remove the sight from your desired mounting platform, keeping your zero intact. Coming in at just over an ounce, the RS-10 shouldn’t weigh you down either.

  Anymore, the mounting method for a reflex sight is very important. Mainly because one needs to know if it will fit on their handgun. The SLx RS-10 uses the fairly common Docter/Noblex footprint to directly mount to stuff. Primary Arms also includes a picatinny rail mount and a Glock MOS plate. That way if you aren’t mounting it directly to a pistol, you have some options. For instance, it would make a great 45 degree offset red dot for a rifle. I ended up mounting it on a Strike Industries Liteslide for a G19, as it has a multi optic mounting platform. The SLX RS-10 mounted in perfectly. Primary Arms decided to go with the Docter mounting footprint so they could use that CR2032 battery and have it side mounted. Since the battery is physically larger than other options, you end up getting more battery life out of it. For the small size of the RS-10, a different mounting footprint just wouldn’t work. 

  The SLx RS-10 is a great little red dot. This doesn’t come without a few tiny gripes. If you hold the RS-10 on target, and start shaking it a tiny bit, in a circle, the dot will galaxy out. So it literally looks kind of like a little galaxy inside the window. Does it bother anything? Nope, when shooting the pistol I didn’t even notice it. Even on moving and circling targets. Most people probably wouldn’t even notice it. I also would have liked to see it on a RMR footprint, but Primary Arms didn’t do this because of those “battery” reasons. I can understand this. Now, on a good note. Even for me, with my astigmatism, the dot is fairly clear. So those with normal eyes will see a nice crisp dot. 

  I am going to say this, the Primary Arms SLx RS-10 is currently my go to red dot pistol sight. This red dot impressed me more than I expected. I can find the dot easily. I haven’t destroyed it yet. Even if I did, it has a lifetime warranty. The size doesn’t get in the way. I’d say it is somewhere between one of the super small mini reflex versions and a Holosun 507. The RS-10 is always ready to go because of the “Autolive” feature. The click adjustments for windage and elevation make it easy to make adjustments, unlike other mini reflex sights that have no clicks. I ran this thing fairly hard and have had zero problems. 

  If you are looking for a mini reflex red dot, the SLx RS-10 from Primary Arms might be it. It is priced under $200. At that price, it’s a great deal for this feature packed red dot. With the Autolive function, you won’t have to worry about if the dot is on or off, because it will always be on. I don’t think you can go wrong selecting the Primary Arms SLx RS-10 mini reflex sight. 

Firearms Insider Reviews - 8 Key Points

Claim to Fame:

Quality Mini Reflex red dot sight for a great value

Target Market:

Anyone wanting a decent priced pistol mounted red dot

FNBs (Features & Benefits of this product):

  • 7075 aluminum body

  • Side-loading CR2032 battery compartment

  • Convenient push-button controls

  • 11 Brightness settings

  • Daylight bright and night vision compatible brightness levels

  • 3 MOA dot

  • Picatinny Rail Mount and Low Profile Adaptor Plate for Glock® MOS Slides Included

  • Autolive motion activation

  • 40,000 hour battery life

  • Weighs just 1.07 Oz

  • 23mm window

  • Lifetime warranty

  • Docter/Noblex footprint

What other aesthetic options or finishes are available?

None

What others are saying?:

5 out of 5 stars on Amazon 

Another great option from PA

Mounted on my Canik Rival with no issues. Great product for the price. Will highly consider getting another in the future.

Link to other reviews:

Lynx Defense  

Price point:

MSRP = $199.99

Retail = $199.99 but Primary Arms is constantly running sales

I need it now! Availability:

Primary Arms

Our Rating:

Pros:

  • Autolive motion activation

  • Price

  • Dot is easily picked up

  • Side loading battery

  • Actual “click” windage and elevation adjustments 

Cons:

  • Doctor / Noblex footprint

  • Galaxies when circling a target fast

Score:  8.00 Great

Favorite Link:  Walker Defense Research