Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
Hitting at least 3 enemies with an attack, increases your damage by 24-36% for 3 seconds.
You can Hipfire with this weapon while Sprinting. 6-15% Close Damage while Sprinting. Also reduces weapon spread at all times by 30%.
7-10% Reload Speed for 4 seconds after Close Kill. Stacks 5 times.