Engineering & Technical Division

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At the 2012 SHOT Show, Hi-Lux Optic presented the upgraded CMR4 version of their popular CMR 1-4x24 scope. While the current CMR (Close-Medium Range) model is more of a multipurpose 1-4x scope, the new CMR4 is designed for the tactical role. It had addressed some of the concerns that I had found on my review of the Hi-Lux Leatherwood CMR.
The new Hi-Lux Leatherwood CMR4 features the following improvements over the CMR:

1) Improved Reticle

The CMR4’s reticle is still based on the one found on the CMR. The main difference is that it has a ticker outer open-circle for faster target acquisition. The inner open-circle is now thinner and smaller for assisting precision shooting. Both the vertical and horizontal stadia lines are now extended all the way to the edges. I personally still prefer the half-length stadia lines of the original CMR. There are two BDC marks for 500m and 800m ranges.

2) Capped Turrets

The adjustment turrets on the CMR4 are slightly smaller than those found on the CMR but it still retained the patented Zero-Lock return to zero system. While simple stamped caps were used on the prototype at SHOT, the production version of the CMR4 will be using machined billet aluminum caps.

3) Mils/Mils adjustment

The CMR4’s turret adjustment will be in Mils instead of the ½ MOA adjustment as on the CMR. The original CMR’s reticle is already using Mil hashmarks on the horizontal stadia lines and the new CMR4 reticle added that on the vertical stadia line as well. A Mil or milliradian is equal to 3.438 MOA. Each click on CMR’s turrets represents 0.1 Mil.

4) New illumination system

While it’s still not daylight visible, the new illumination system is now includes 3 levels of night-vision settings and has up to 400-500 hours battery life at max brightness with a good quality (not the cheap 25 cents ones from the auction site) CR2032 lithium battery. The CMR4’s illumination for both red and green colors seems to be brighter than that on the CMR. The CMR4’s reticle illumination lights up both of the open-circles, the center dot and a short top section of the vertical stadia line. As with the CMR, there will be separate CMR4 models for each of the color illuminations.

5) Shorter length Tube

The CMR4 prototype is roughly half inch shorter than the CMR. Which make it about 9.5 inches long. Hi-Lux’s Alex Sergeev shown me that the CMR4 prototypes are using a custom-made 3-piece tube but he informed me that the production version would use a lighter 1-piece tube design. It’s unknown how much weight saving the shorter tube can offer at this time.



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