Dragonov Acog Extended mags.
Basically an MK14 on meth.

I really like the G36C it is easy to handle has a high RoF without the huge recoil so you can easily switch out Kick for Focus or whatever you prefer. If you make it a habit to reload before the magazine is emptied out it needs no SoH either.

ACR is actually too slow for my taste and if you equip silencer the extra 5 meters before damage dropdown compared to the average AR will not help you.

Scar-L has low damage but you can slap on a silencer and the range until the bullet drops in damage is then the same as the ACR without silencer (25 meters).

My favorite gun is an acr with extended mags and red dot sight as its accurate and an all round champ

I'm a bit of a toss up. I like the ACR w/ Extended Mags and a Silencer and the MK14 w/ Hybrid Scope and Silencer.

The ACR is highly accurate to the point of not needing anything other than Iron Sights and while the silencer kills some of it's power, the element of surprise you get with the silencer and the accuracy of the weapon, that one extra needed hit to get the kill is easy to get.

MK14 is a highly accurate and powerful weapon, but because it is best at medium to long ranges and can only fire a single shot at a time, the weapon needs some sort of sight. The Hybrid Sight is best I believe because you can quickly switch between the close and long range sight, making it easier to use the weapon effectively at both ranges. The silencer, while once again diminishing of power, is a good trade off. Allows you to go unnoticed on the HUD and will still allow for 1-2 shot kills. In fact, I've even gotten a triple kill with a single shot while using a silencer on the MK14.