Noah O. Thompson
I Tested And Reviewed The Sig Sauer Romeo 5 Red Dot Sight
If you’re looking for a reliable red dot sight that is both durable and affordable, let me introduce the Sig Sauer Romeo 5. I tested it rigorously, and can vouch for its first-rate performance.

FYI, prices and ratings are accurate as of time of writing.
Sig Sauer Romeo 5 1x20mm Compact 2 MOA Red Dot Sight
Top-rated: 11,109 ratings | 699 answered questions

Credit: Amazon.com
Highlight: Dependable waterproof and fog-proof performance.
Helpful review: "I received this in the factory sealed box, and with the factory tamper-proof seal in-tact! The sight came boxed with: Mounting Key, Lens Cloth, Battery, 2 Mounts, Lens Cap, and Instruction Sheet. Very nice sight; easy to mount; clear optics. Now, a few things that's important to know about the optic:
(1) Read over the instruction sheet. Don't just think you've had these types of sights before. Don't assume you'd know how this one would work. Actually read the instructions.
(2) Yes! the sight has an auto-off after 120 seconds of "No Motion" with auto-motion ON. So, yes if it's stored in a vehicle, the motion will keep the red dot illuminated and cause an unnecessary battery drain. Read the instruction sheet. It informs you that the sight also has an actual Power Off and Power On option. To use this option, you only have to hold down on either the + or - button longer than one second (the same to power it back on).
(3) Reports of the "sight not working" are in most cases caused by one of couple of things. When you first install the battery, you will not be able to see the red dot until you turn up the brightness, so click the + button (Don't Hold It Down At First, Just Click It) 3 or 4 times. If you still don't see the dot, assume the sight is in its Powered Off Mode and push and hold either the + or the - button for one second to actually turn the sight on. Then click the + (plus) button a few times until the dot becomes bright enough to see.
(4) Another possible problem that could happen is with installing the battery. Mine had a safety peel off sticker that HAS to be removed. Well, due to certain conditions, when you peel this off it would leaves adhesive (glue) on the battery. It's theoretically possible that it would cause a loss of battery contact. Make sure when you peel the sticker off from the battery that all the adhesive is cleaned off of the battery itself.
Caution! the brightness adjustments in either direction ISN'T A PUSH & HOLD operation. It's momentary clicks! That means that the brightness setting isn't a constant veritable. It works in CLICKED STEPS! Furthermore, holding down for more than one second on either the Plus or the Minus button actually turns the optic sight OFF (totally powering it down), meaning that just clicking the brightness buttons (Plus or Minus) will not do anything until the optic sight is "Turned Back On." This sight has some higher level electronics then the standard red dots, but it's not rocket science to understand. It's a known cause for a lot of these being returned, and the reason for some low rated reviews.
It's NOT only Auto-Powered Controlled. It can be Turned Off, and it can be done so by accident. PLEASE read over the instruction sheet FIRST before you box this sight up and return it. So, bottom line on the optic sight itself... let me make this clear!
This review is from a 64 year old AR-15 (5.56 NATO) gun owner! The sight responded well to adjustments! Seems to be holding ZERO very well with what ammo I've fired so far! It has very clear optics! Having the turret adjusting bits built onto the turret caps works very well!
There's no issue with the quality or function of this sight that I can find, but I'm thinking that the same sight upgraded to the larger tube and lenses might be NICE! BUT it would be larger and would cost more! So this one is perfect for the money. I highly recommend!" — Mark W.
Get it from Amazon now: $129.19 & FREE Returns

Credit: Amazon.com