DI Optical may not be a well-known name in the US yet, but the Korean optic company has been in the “gun” business for over three decades. More specifically, DI Optical is a major manufacturer of optical sights for auto-canon, heavy machine gun and automatic grenade launcher for the Korean military, the US military and many of our NATO allies. DI Optical also makes optics for rifle and carbine. I consider the featuring DI Optical RV2 model the best deal in red-dot sight on the market currently. The military versions of it is in the Korean military service for years.
I noticed that the DI Optical RV2 and RV1 series have at least 3 generations. All have the similar external look and powered by a common AA size battery. The original version has the 2-MOA dot reticle with battery life measured in couple hundred of hours. The 2nd generation changed the reticle to the current super sharp 1.5-MOA dot and increased the battery life significantly to 10,000 hours. The latest 3rd generation has the same 1.5-MOA dot reticle, farther doubled the battery life to 20,000 hours, and the biggest improvement is in its lens with the new clear lens coating.
Viewing through my Gen 3 DI Optical RV2 sample it shows no lens tint. Which is not a big deal under daylight condition, but when use in low light, the previous generations models have very noticeable blue-ish lens tint. Not the worst I have used, but the older models are no comparison to the 3rd Gen RV2’s lens, which is basically clear with just barely hint of magenta.
The DI Optical RV2 and RV1, which I have reviewed previously for another publication, both have basically the same optical design. The difference is that the older RV1 model has analog illumination control with a rotating control dial on the right-rear that’s carried over from DI Optical’s bigger machine gun sight. The RV2 model has a fully digital illumination control with push buttons on the left side, and a smaller housing that’s 2-oz lighter. The RV2 model also has a build-in motion sensor that will turn the sight off after 10 hours of non-activity, and it will wake up the sight with just a slight motion.
I was concern about the long-term durability of the rubber push buttons, but DI Optical told me that none of their military and law enforcement customers have reported issues with those rubber buttons, and plus it’s really easy to replace it by just unscrew the two bolts, then pop out the panel and drop in a new replacement unit.
According to DI Optical’s social media post, this sample of DI Optical RV2 has been submerged in the 150 gallon fish tank for almost 6-months and it’s still running strong. How’s that for the battery and water submersible testing?
Size and style wise, the DI Optical RV2 is comparable to the popular Aimpoint CompM4. Both are durably built and combat proven sights. The Aimpoint has better mounting options, 4 times the battery life, German Schott glass and has a marginally bigger FOV due to its bigger ocular lens size. The DI Optical RV2 is more compact, about 40% lighter, much better lens caps, and it only costs 1/3 of that of the Aimpoint CompM4’s price tag.
I suspected because it was originally designed to be mount on the Korean Daewoo K2 rifle, when the DI Optical RV2 is mounted on an AR15 or AR10, it has a somewhere in-between lower 1/3 and absolute co-witness with the iron sights. Another mirror thing about the RV2 that I found is that it’s turret adjustment is in a rather coarse 1-MOA per click. Although it does have a large 150 MOA of total adjustment range.
Overall, I really like the DI Optical RV2. It’s a military grade optic that has long battery life, good optical performance, and it’s very affordable at just $267 online. Special thanks to Rich from Marksmanship Trainer and Diamondhead USA for modeling for me. Good training and good gears. Check them out.
DI Optical RV2 Specification:
Objective: 30mm multi-coated lens
Body: Hard anodized 1-piece 6061-T6 Aircraft grade aluminum construction
Size: 4.3-in (L) x 1.85-in (W) x 2.7-in (H)
Weight: 8.5 oz.
Reticle: 1.5 MOA dot
Adjustment: 150-clicks, 1 MOA per click
Illumination: 14 levels, 7 day and 7 NV settings
Power: 1x AA size battery
Battery Life: 20,000 hours at level 5 (middle setting)
Water Submersible: 30 ft
MSRP: $297, street price $267