You can make shots that others find impossible, granting you the following benefits:

• Increase your Dexterity score by 1 to a maximum of 20.
• Your Ranged Attacks with Weapons ignore Half Cover and Three-Quarters Cover.
• Being within 5 feet of an enemy doesn’t impose a Disadvantage on your ranged Attack Rolls with range Weapons.
• Sniper Mastery: When you score a critical hit on a ranged Attack roll (Martial Weapons Only), you can stun the target until the start of your next turn instead of doubling the damage.