Homebrew
Pistol. Ranged Weapon Attack: +4 to hit, range 50/150 ft., one target. Hit: 5 (1d6+2) piercing damage. Ammunition, Reload (15)
Mace. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6+2) bludgeoning damage.
Stun Grenade. The guard throws a stun grenade up to 60 ft. Each creature within 20 ft. of an exploding stun grenade must make a DC 15 Con save, becoming stunned until the end of its next turn on a failure and deafened until the end of its next turn on a success. The guard can use this ability once before needing to restock.