Gunslinger Grappler

You’ve developed the skills necessary to hold your own in close-quarters grappling. You gain the following benefits:

• You can use your Dexterity Modifier when performing Grapple (Athletics) checks.
• You can attack enemies grappled by you with light, ranged, one-handed weapons that you have equipped.
• Having enemies within 5 feet of you doesn't cause the usual disadvantage on ranged attacks as long as no other conditions give you disadvantage on the attack.
• You can use an Action to execute a takedown against a target you're grappling, as long as the target is of your size or smaller. The target has to succeed on a Constitution Saving throw or be Stunned until the end of your next turn. On a failure of 5 or more, the target is also knocked prone. On a success of 5 or more, the target breaks the grapple. The Saving Throw DC equals 8 + Proficiency Bonus + Dexterity Modifier or Constitution Modifier (your choice).
• You can use the takedown an amount of times equal to the modifier you chose for the Saving Throw DC (Dex. mod or Con. mod.). All expended uses are replenished on a short or long rest.
• Attacking prone targets within 5 ft of you while using ranged weapons doesn't impose disadvantage on your attacks.