The Hek is a powerful shotgun that fires its shots with a tight spread, making it efficient at medium range as long as its strong recoil is properly managed.
The Hek is a Grineer shotgun that deals very high damage, particularly known for its relatively narrow cone compared to other shotguns. Due to this relatively tight spread, the Hek is able to perform with greater success at close to middle ranges, regardless of pellet/ projectile falloff. However, the Hek does trade its raw power and relative focused fire for its small magazine size, and generally limited crowd-control ability.
Ammo Stock at Rank 3 (+40%) adds two into the magazine size (for a total of 6). There is no need to upgrade the mod further as no additional rounds will be gained.
A fully ranked Ammo Stock combined with a fully ranked Burdened Magazine will add 5 additional rounds to the magazine, giving it 9 rounds in total.
Using the Shotgun Ammo Mutation mod can help regain ammo when needed, although not as often as the full auto shotguns.
The weapon's spread cone can be shrunk by zooming in.
Equipping both Hell's Chamber and Scattered Justice will give the Hek +320% Multishot, giving it an impressive 29 pellets per shot with a 40% chance of firing a 30th pellet. This greatly improves the Hek's damage and status chance.
This weapon seems to be modeled on the main weapon of Councilor Vay Hek's Terra Frame, which fires rockets as opposed to shotgun shells. This has caused speculation as to whether the Councilor himself is merely the shotgun's namesake, or otherwise responsible for designing/commissioning it.
Additionally, Vay Hek's only weapon was the Hek shotgun before his Update 13.0 rework.
Vem Tabook uses a modified Hek that fires electric shells.
The magazine for the Hek is the cylindrical 'handle' sticking out of the side of the bottom right barrel. This raises questions as to how the shells are actually loaded into each barrel.
It is possible that the barrel it is attached to is a tubular feeding system and not for firing, and that the other three barrels actually fire.
The Hek received a minor visual update in Update 13.4.1, which added weathering and other textures to the weapon to make it look more worn and aged, putting it in line with other Grineer weapons.