2.5-4% Bonus Critical Chance on Chained Hit. Stacks 5 times.
7.5-15% Weak Spot Damage. Weakspot Kills also ignore Enemy Hit Mass.
10% Critical Chance for every 0.3-0.45 second while aiming. Stacks 10 times. Discharges all stacks upon firing.
4.5-6% Critical Chance for each expended round in your weapon (resets on reload).