The red dot sight from Call of Duty: Modern Warfare 2 was only available during the builds of MW3 and was never actually released for the game. For unknown reasons the red dot sight from MW2 was cut and they used a similar model from the original Modern Warfare but with changes. But an AK-47 with the MW2 red dot sight can be found in MW3 in the spec ops mission "Kill Switch".
The difference is that red-dot sights have contained aiming reticles, whereas laser sights use an emitted laser beam that must fall onto a target. Red-dot sights are used mainly for more accurate ADS (aiming down sight) firing and laser sights allow for less-accurate, but made more so, shoulder-firing.
With a red dot, or reflex sight, you have a low power LED that produces the reticle, while a holographic sight uses a more powerful laser that bounces around to produce the holographic image of the reticle. The biggest impact of this difference is the duration of the battery life of the site. As the holographic sight consumes more power, it understandably dies quicker compared to a red dot sight. It is always recommended to turn off your site if you do not intend to use it for some time to avoid draining the battery. You can get any other idea about holographic from online as Olomagic.com.
If you are 100% sure that the laser is below 5mW you and other viewers should be safe. I would suggest getting a red pointer for this, as green light shows as more powerfull to the human eye.
a red flag would still be red in a red light.
red
It isn't in MW3. It's basically a red dot sight with a customizable center dot.
use a sniper
red dot sight
a red dot sight
This is 100% up to the person playing, it depends on the map, game type, playstyle of the player, playstyle of the opponents, etc. My personal favorites are CoD4- MP5 Silencer WaW- MP40 Drum Mag MW2- ACR Red Dot Sight / UMP Silenced (Changes with my mood) Black Ops- Famas Red Dot Sight MW3- Type 95 Rapid Fire and either the Red Dot Sight or the Silencer depending on my mood.
an electric sight is a "red dot" sight that uses a laser to project a red dot where the airsoft bbs will go when you sight it it.
The BSA red dot sight test measures how well a person can use a BSA red dot sight on a gun. BSA red dot sights are good for quarter and medium range targets.
Peronnally I like the M16A4, but you might not agree. Try putting a holographic sight/ red dot sight on it, if you don't like the cold steel. The M16A4 is a headshot killing machine!
Lazer sight
The holographic sight is a sight with a 1.5x zoom. The hybrid sight is a combination of both the red dot sight and holographic sight, you can switch between the two at any time. The hybrid sight is only in MW3. Related links have been added that describe the features of both sights
Get a red dot sight or reflex sight and create the lens....
There is essentially no difference in the two, they both do the same thing but they look different on the outside. Technically speaking, a red-dot is a reflex sight.