HK Gun
From WikiRaider
The HK Gun is a weapon that Lara uses in Tomb Raider V starting with the VCI levels.
It is smaller than the M16 gun and comes equipped with laser sight. It has 3 modes of operation: sniper, burst and rapid. In sniper mode, only one shot is fired when the trigger is pulled. Burst mode shoots 5 rounds and rapid mode fires continuous shots.
The weapon needs no time for reloading and is very effective at long range.