Quickdraw

You've honed your skills in dueling with firearms. When combat begins, after initiative is rolled but before the first creature acts, you may make a contested Dexterity (Slight of Hand) check against the hostile creature which rolled the highest initiative. If you succeed, you may use your reaction to draw a one-handed ranged weapon and use it to make a ranged weapon attack against a creature you can see within range. If you fail the skill contest, the contesting creature may use its reaction to make a single ranged weapon or spell attack against you. The hostile creature may not draw a weapon as a part of this attack.

This feature cannot be used if you are surprised. You can use this feature a number of times equal to your proficiency bonus. You regain all expended uses after a long rest.