Lucky Shot is a trait in Destiny 2 that can appear on 12 weapons. There is also an enhanced version with a stronger effect.
What Lucky Shot does
Reloading after a precision final blow causes precision hits to refill a round from reserves.
Enhanced version
Reloading after a precision final blow causes precision hits to refill a round from reserves for an improved duration.
Weapons that can roll Lucky Shot (12)
ALLEN 05Strand · Sniper Rifle
Alone as a godKinetic · Sniper Rifle
Inbound SurveillanceKinetic · Scout Rifle
Naeem's LanceStrand · Sniper Rifle
NightshadeStrand · Pulse Rifle
Omniscient EyeSolar · Sniper Rifle
Pro MemoriaStrand · Machine Gun
Rapid GrowthArc · Sniper Rifle
Service RevolverKinetic · Hand Cannon
Sixth SenseStrand · Hand Cannon
Trophy HunterVoid · Sniper Rifle
Volta BracketStrand · Sniper Rifle