Smith-557

The Smith-557 also known as the Dean is a fairly long Light Machine gun that the Quantonian Empire use quite often, It is usually seen mounted on top of mobile combat jeeps and combat boats.
It has a fire rate of 1000 rounds per minute, It can be handled manually but is recommended to have it mounted on a turret or wall due to the weight and how much recoil the gun gives off.
It uses 50 caliber rifle rounds which can pierce through tank armor made of standard steel.
The Smith has a cocking handle on the right side and a magazine slot on the left, it can use extended rifle magazines or an ammo belt, There is also a scope rail across the top which can be given sniper scopes for long range combat.
The Smith comes with a steady arm adjustment for Exo-suits which is a flexible arm that connects the rifle to the exo, so if the user drops the rifle it would not drop to the floor but only lower gently. The Steady arm is an optional device mainly used for heavy troopers.
This rifle only just dents Quantasium but that's just an inch thick piece of it.