New scope for new ar build

[mtcruiser]

Hi all looking to get a new scope for my ar. I have been looking at some leupold ar mod 1 4-12x40, sightron sii 4-16x42 and Nikon M-223 4-16x42. I really like the custom turrets on the Nikon and leupold. But I can get the sightron for a lot cheeper. Would the turrets be worth the extra $? What are your opinions of the scopes that I have listed? The gun will be used for shooting ground squirrels and some paper. Probably not going out past 300yrds most the time. Any help would be appreciated.
Thanks

[GH41]

Tell us about your rifle? How tight does it shoot with good ammunition?

[mtcruiser]

I have only test fired it. Not at any paper yet. Needs optics. I don't have any irons.

[GH41]

Tell us about the rifle.....

[Airhasz]

What caliber are you shooting these ground squirrels with?

[mtcruiser]

The rifle is .556 with a 16" arp barrel and arp bolt. Bcm upper with the a5 buffer system. The lower is a rock river with a velocity 3lbs trigger. Let me know if you need any more info on the gun.
Thanks.