The factory issue Hemlok fires a three-round burst. While it doesn't put as many rounds down range as other weapons, it is perhaps a better use of those rounds due to the Hemlok's higher accuracy and relative range.
High damage per bullet.
High fire rate.
Unusual fire pattern that requires you to aim low so the final shot will hit the enemy's head.
Very poor hipfire accuracy.
Extra Ammo Increases magazine capacity from 24 to 30.
Gunrunner Allows hipfire while sprinting.
Speedloader Reduces reload time by 30%.
Gun Ready Halves the time to go in and out of ADS.
Quickswap Faster transition when switching to this weapon.
Tactikill Pilot kills reduce your Tactical ability's cooldown.
Factory Issue The Hemlok's base ironsights.
HCOG Open-sight reticle with no zoom.
HCOG Ranger Sights with increased zoom.
Threat Scope Highlights enemies in red, even through smoke. Disables second mod slot.
Pro Screen Displays counter for lifetime pilot and titan kills.