Hi-Lux Leatherwood CMR-AK762: a 1-4x Tactical Optic for the 7.62x39mm and 300 Blackout Calibers

cmr-ak762_title

Few months prior to the 2013 SHOT Show, Hi-Lux Leatherwood launched the new CMR-AK762 model in their popular Close Medium Range (CMR) 1-4x24mm series of tactical scope with a ballistic reticle made for the 7.62x39mm and 300 Blackout calibers. I had the opportunity to used the CMR-AK762 for my 16-inch barrel 300 Blackout AR-15 uppers from Noveske Rifleworks and Faxon Firearms. Since I don’t own an AK rifle in 7.62x39mm, this review will be focus on using the CMR-AK762 as a 300 Blackout/300 Whisper optic for the AR-15 platform. (Click here for my review of the standard Hi-Lux Leatherwood CMR model for the .223 and .308 calibers).

CMR-AK762_faxon_1

The CMR-AK762 has the 2nd generation of Hi-Lux’s fast aiming double-horseshoe reticle with a number of caliber specific changes. The most obvious of those is replacing the BDC (bullet drop compensation) to ones that are calibrated for the 124gr 7.62×39 projectile. According to the company, the CMR-AK’s BDC is good to 550 meters for my favorite 300 Blackout/Whisper supersonic loads: the 110 gr Hornady V-Max, Barnes VOR-TX black-tip 110 gr and the Black Hills 125 gr w/ Sierra Match King OTM projectile. I actually have shot those supersonic 300 Blackout loads way passed 550 meters.

The reticle’s interior horseshoe has a small inverted chevron or small “V” at the 12 O’clock position for use in 100 meters or closer distance. The strata lines extended to the edges on three sides with small 1 MIL hash marks. The right side of the reticle included a cleverly designed stadiametric range-finder that’s calibrated for use with multiple measuring methods: the height (5’10” height), shoulder-width (19-inch width), torso height and head size.

CMR-AK762_1x CMR-AK762_4x

The CMR-AK762’s zeroing procedure is a bit different than the standard CMR’s because of the ballistic difference. The center 1 MOA dot inside of the double-horseshoes needs to be zero at 200 meters or yards for the rest of the BDCs to work. If a 200m range is not available, use the small “V” on top the smaller horseshoe for a 100m zero. For subsonic 300 Blackout ammo, I used the MIL hash marks in the CMR-AK762’s reticle. In general, the subsonic 300 Blackout rounds drop 3-5 MILs (10.8 in to 18 in) at 100 meters range depended on the velocity, ballistic co-efficiency and the bullet weight. I found the vertical strata line has enough holdovers to use out to 500 meters with good subsonic loads like the Hornady 208 gr A-Max, American Eagle 220 gr and the PNW Arms subsonic with the excellent Sierra 220 gr Match King OTM projectile.

The reticle illumination covers the double-horseshoes, the center dot, a small section of the vertical strata line and the stadiametric range-finder on the right. A common CR2032 lithium battery powers the illumination system for estimated over 100 hours. The reticle illumination is not daylight visible, but it offers night-vision compatibility and the battery life is great. There are specific red or green illumination models of the CMR-AK-762. Most buyers of the Hi-Lux Leatherwood CMR series seem to prefer the green color illumination models.

CMR-AK762_night_1x CMR-AK762_night_4x

The CMR-AK762 uses the same ½ MOA adjustment turrets as the standard CMR models. Each turret included the easy to use patented Zero-Lok return to zero feature. Also available is a higher-end CMR4-AK762 model that offers capped turrets with 1/10 MILs adjustment, superior grade of lens and scratch resistant hard-coat on the tube body. The CMR-AK762 retails for $450 and the CMR4-AK762’s MSRP is $550.

CMR-AK762_noveske

Specifications:
Model: Hi-Lux Leatherwood CMR-AK762 1-4x24mm
Magnification: 1x to 4x variable
Objective Lens Size: 24mm
Ocular Lens Size: 33mm
Lens Coating: Diamond Tuff14 multi-coat
Field of View at 100 yards: 1x: 94.8 ft. and 4x: 26.6 ft.
Eye Relief: constant 3 inches
Exit Pupil size: 11.1mm at 1x and 6mm at 4x
Tube Size: 30mm
Adjustment: 0.5 MOA per click
Length: 10.2 inches
Weight: 16.5 ounces
Reticle: Double-horseshoes with 1 MOA center dot, stadia lines with BDC and MIL hashmarks.
Reticle Illumination: Green or Red color, 11 levels with Night Vision setting.
Power Source: 3-volt Lithium CR2032
Warranty: Limited Lifetime
MSRP: $450


Writer and gear editor with articles published in major gun publications. A five year combat veteran of the US Marine Corps, Tim is also part of Point & Shoot Media Works, a producer of photography, video and web media for the firearms and shooting sport industry.


Advertisement

  • http://www.facebook.com/nicholas.mew.3 Nicholas Mew

    I will just stick to Russian Scopes.

  • FourString

    Hi Timothy,

    Just wondering but is there a traditional sporter stock/lower combination that you could put on the ARAK-21 to make it fully CA compliant (without bothering with bullet buttons)? Assuming that the ARAK-21 design negates the need for a buffer tube, I think there’d be a sizable market for that in California. Make a good looking stock/lower and mate it to the upper receiver, and you’d sell a lot of ARAK’s.

    • Timothy G. Yan

      Faxon uses a captive recoil spring around the long-stroke piston.

      • FourString

        Yes, I realize this, which is why I ask if there is a traditional sporter stock/lower compatible with a non-buffer-tube AR-15 platform like this ARAK-21 :)

        Either I’m not Googling hard enough or it doesn’t exist? Any specific experience/knowledge of such a set up would be greatly appreciated, Tim.

        • Cymond

          Interesting. Timothy, imagine a traditional rifle stock, like on a typical Mini-14 or Rem 700. Since the Faxon doesn’t need a buffer tube, it doesn’t need a normal AR lower, either.

          Of course, Fourstring, you could also create a featureless lower using something like the Exile Machine Hammerhead. Yes, I know, they’re awkward and look weird, but they do work.

          • FourString

            Thanks Cymond, for giving helpful examples to illustrate my question. Yes, I would actually want to avoid the awkward featureless stocks in favor of a traditional sporter stock, which seems like it would be more comfortable to use. If such a traditional stock that works with buffer-less AR’s exists, that would be great. For home defense, a traditional sporter stock mated to an ARAK-21 would be more practical than existing bullet button set ups.

            Slap some PMAG 10 rounders in and you one hell of a California gun.

            If such a lower/stock combination does not exist, I see a niche that is begging to be fulfilled. California shooters are very fervent in their sport, and very united, in face of the limitations that exist.

          • FourString

            Perhaps an adapter from Ar-15 to Remington 870 stock adapter would be great, but so far I’ve only found the reverse. A Remington 870 Magpul stock would be awesome mated to the ARAK-21, I think.

          • http://twitter.com/360_AD the.ting

            You can also use a A2 stock and monsterman grip.

          • FourString

            Yeah BB isn’t really all that bad getting used to it, but I was thinking more in what would look more natural. I also thought up of getting a Saiga sporter in .223/5.56 and adding a mag converter for ar-15 mags. You lose the AR ergos but that’s the closest to a real sporter. Should be relatively cheap I guess.

            That monsterman grip is hideous at least to me. :(

          • Axel

            What we need is a lower receiver that works WELL with a traditional stock layout. Bufferless AR:s are well suited for this.

          • FourString

            Exactly what I was thinking. Thank you

          • Cymond

            @TCBA_JOE: I remember the Ares Defense Herring, but like a lot of their products, it turned out to be vaporware. It’s almost impossible to find a picture of it, but I have a pic on one of my external hard drives. Need to find that …

            On the plus side, the politicians can’t really ban something that doesn’t exist. The Kel-Tec SU-16 and typical SKS seem like great post-ban rifles, but they’re typically listed by name in new legislation. I’ve said before that gun companies need to design post-ban rifles but keep them secret.

            @FourString: I thought about it more, and I don’t think it would work because of ergonomics. If the stock was tall enough to give a good view of the sights, then the trigger would be too far from the grip. It’s hard enough to reach the magazine release with the Hammerhead grip attached to the pistol-grip location. Or you could do something like the Thordsen Custom FRS-15 stock, but without a buffer tube, you wouldn’t have a cheek weld. I’m afraid the sights and the trigger are too far apart to make a conventional sporter stock work comfortably.

            http://siterepository.s3.amazonaws.com/2675/rifle_tight.jpg
            http://www.thordsencustoms.com/frs-15-stock.htm

          • FourString

            Yup, all valid points, and I agree. If you see the Saiga sporterized AK’s, you’ll notice that their triggers are pulled back a little to improve reach. I think a successful California sporter set up would embrace a similar approach. An obstacle to tackle would be how to design the trigger of the new lower and it’s size. You could easily address the cheek weld with a pad or design the sporter stock with a riser. One of the things about the sporter stock is that it would contradict the original merits of the rifle (to direct the recoil in a straight line to the shoulder) but that’s what would make the implementation of such a stock such a fascinating exercise.

          • Cymond

            I found that pic of the mythical Ares Defense Herring. I guess they made at least 1 of them.

          • FourString

            Suddenly, an open source CAD file for 3D printing might just address this. Hopefully someone working on those might see this?

          • TCBA_JOE

            What you’re looking for is the “Herring Modular Sporting Rifle”. Appeared several SHOTs ago but never hit production.

          • FourString

            Great find. Too bad it’s not in production. Would be great as a lone lower/stock unit.

  • David T.

    This sounds great, but seems overkill for a 7.62×39 rifle.

    Are there better options for the generally lower costs associated with an SKS or AK style rifle that still utilize the BDC hashmarks?

    • Raven

      PSO-series Russian scopes, maybe?

  • JumpIf NotZero

    Oh, MOA, that’s nice…. Let me know when they get to a big boy arc measuring system.

    • Chris Tully – Hi-Lux INC

      Look at our CMR4-AK762. We have 0.1 mrad adjustments

    • 032125

      Wow. You must be so high speed. If I clean up your brass, can you tell me about how you earned your third mustard stain?

  • joedeats

    I have this optic on a sig 556R, it works really well and is worth more than priced. I’ve had this scope on 3 seperate continents and its been through heat, sand, dirt, mud, snow and a hail storm with golf ball sized hail. It hasn’t failed me ever, it impressed me enough to order 10 more for my business. This isn’t a mall ninja special lads this is the real deal.

    • Dave El

      What scope mount did you use for your SIG 556Rs and this scope?

  • Guest

    What would be cool is a lower receiver that works WELL as a traditional stock receiver, but that mates with bufferless AR:s.