A lot of us have iron sights set up to co-witness with a primary optic, mainly as a backup in the event the optic fails, but co-witnessing like this doesn’t work if that optic is magnified. Traditionally, the product solution offered has either been a quick release on the optic mount or a set of offset sights — an otherwise-normal set of irons that hangs off a rail section at a 45° or other angle. ZeroBravo has taken quite the departure from tradition with its REOS — Rapid Engagement Offset Sights [not to be confused with ROUS, which definitely exist] — in order to provide simple, rugged sights that act both as backups and as a faster option for short ranges that can be difficult to engage with a magnified optic. . .
Simplicity is an oft-desired feature in backup sights, and the REOS deliver here. Once clamped onto your scope, they have no moving parts. They’re machined from 6061 aluminum and then Type III anodized.
No front sight post, even. Sight alignment is achieved by simply lining up the two apertures, and precision is achieved by perfectly centering the front sight’s aperture in the rear sight’s aperture. Basically, it’s two ghost rings.
One nice benefit to the hole-in-a-hole alignment is that the target is nicely visible and the point of impact should be right in the center, unobscured by a sight post.
In these photos, the REOS are installed where ZeroBravo suggests: apertures just under the scope’s windage dial. They do work rotated nearly all the way down — which is closer to where I personally prefer them — or rotated up so they’re next to the elevation dial. Before getting them sighted in, I’d suggest tinkering with their orientation to determine where you like them best. As you have to cant or rotate the rifle and/or your head over to align your eye with them, this may be easier with the REOS at a different location around the circumference of the scope. In addition to personal preference, it may vary based on the rifle, scope, etc.
Getting the REOS zeroed was faster than expected. I’d suggest installing the front one where it belongs and snugging it down to spec, then making POA/POI adjustments by rotating the rear so that moving it up means POI moves up, and moving it down means POI moves down. Since it’s moving around a circular axis, rotating one of the sights does affect both elevation and windage, but how much of each will depend on where on the scope’s circumference they’re installed. This may be somewhat complicated conceptually, but it comes together really fast in practice and I was in the A-Zone in 4 rounds.
On The Range
One of the first things I wanted to do was see if I could actually shoot a decent group using the dual ghost ring format, so I put five rounds on a Rubber Dummies target standing offhand from 25 yards.
Definitely acceptable. Especially as these are designed for rapid acquisition speed at short ranges, not for bullseye shooting. And they are quick. I found it easier than expected to get the sights aligned — the back-and-forth process is shown in POV in the video review above, and doing it with the camera was harder than in real use — and locating the target in the middle of the apertures is foolproof.
As the rifle is canted over and alignment is being achieved, the front sight crosses into the rear.
Then the front aperture gets centered in the rear for proper alignment.
Slight difficulty in determining where the front aperture ends and the rear aperture begins — admittedly, my right eye isn’t the strongest — is what holds me back from being even faster and more accurate with the REOS. This would definitely be fixed with some white paint. Indeed, ZeroBravo suggests that this smooth, recessed part of the aperture is easily painted for just this reason, and I’d definitely suggest doing so.
Simple, rugged, fast, lightweight. Apparently people have been using them for 3-Gun and other shooting endeavors requiring back-and-forth between distant and close-in targets. While a reflex sight works very well for this also, the REOS don’t require batteries and don’t have a lens.
If I made a suggested changes or nit picks wishlist…
- I’d want that front aperture recess cerakoted white from the factory. Or at least be given the option to order it already done.
- I’m sure it makes sense when mounted on some optics, but I find the length of the “shaft” part excessive. I wouldn’t have to shift my rifle as much if the apertures were closer to the lens of my primary optic.
- These are precisely machined and nicely finished, but for a hundred bucks I’d like to see a couple more machine operations to skeletonize or flute out some of the extra aluminum. The set only weighs 1.8 oz per pair, but it could easily be less. A changed based on nit pick #2 would shave weight as well.
Specifications: ZeroBravo REOS (Rapid Engagement Offset Sights)
Fit: Available for 1″, 30mm, and 34mm diameter scopes
Material: 6061 aluminum
Finish: Mil-Spec Type III anodizing
Weight: 1.8 oz per pair
Ratings (out of five stars):
Speed: * * * *
Quick and very simple.
Accuracy: * * *
White paint on the front would help. Yes, this is easily done but we can’t review products based on personally-applied, aftermarket modifications.
Ease of Installation: * * * 1/2
It’s a bit more involved that clamping a sight onto a picatinny rail, and getting them zeroed isn’t a familiar process. It didn’t take long, but there’s more trial-and-error than something that’s click adjustable.
Overall: * * * 1/2
The paint thing is silly and easy enough to remedy, but it cost a 4+ rating for me. Other things preventing more stars would be the two additional nit picks plus the $100 price tag. It isn’t unfair or anything, but it isn’t a killer value, either. Super simple is absolutely great for BUIS (back-up iron sights), but super simple also makes a hundred bucks seem like more than it might otherwise.