I would like to provide some input, the M16A3 is extremely similar to the C7A2, they are almost exactly the same weapon, them both haveing 6.5 grendel, with the main difference being the M16A3 has higher damage but also higher recoil. another think to note is that w/ 6.5 grendel (not sure if this is just on the C7 or if it's every gun with grendel) the recoil is absolutely lower with hipfire, the recoil also doesn't pull to the side as well, this fact can be accentuated with a full hipfire loadout. Utilizing muzzle break, and vertical grip being the main attachments, the recoil climbs about half as far and the camera recoil is really good.