Yes it is, However many of the crosshairs are not.
Get a red dot sight or reflex sight and create the lens....
HK21 upgraded with a reflex sight
In Call of Duty: Black Ops 2, the name brand of the reflex sight is the "EOTech." This sight is characterized by its holographic reticle and is designed to provide quick target acquisition. Players can attach it to various weapons to enhance their aiming capabilities in the game.
This is an opinion based question but may say that the Reflex sight is the best reticle on the game "Call of Duty : Black Ops"
kaparis rapid fire you can put on a reflex or red dot sight for more acuracy
definitely black ops
You need to get reflex sight or red dot sight and get to a certain level (sorry I can't remember what level I think it's like 15) and go to reticle then choose what you want.
To get a square, or any shaped sight, go to create a class > (choose custom) > primary > attachments > red dot or reflex sight > go back to primary page > reticle > scroll down until you find your shape.
yeah
Shake that mouse and wake your computer up.
The next game for wii after call of duty reflex is black ops. But for other systems it is modern warfare 2.
Select the sight and then go into reticule or lens color. You can choose any color you wish.