Peacemaker

The Peacemaker is a recurring weapon in the series. It usually takes the form of a gun, and is often a low or mid-ranked weapon with mediocre attack power and no special attributes.

Final Fantasy VII
The Peacemaker is a mid-ranked weapon for Vincent. It can be acquired in Kalm early in the game, or bought in Junon in Disc 2 or 3 for 3300 Gil. It provides 38 attack, 118 hit rate, 8 magic, and 1 linked slot and 1 unlinked slot, as well as Double AP growth.

Final Fantasy X
Peacemaker is a weapon that Auron can acquire if the dominant abilities on any weapon are Double AP and Overdrive -> AP.

Final Fantasy Tactics Advance
Peacemaker is a mid-ranked gun that provides 33 attack and teaches the ability Charmshot for 300 AP.

Final Fantasy Tactics A2: Grimoire of the Rift
Peacemaker is the strongest gun in the game, boosting 35 attack and teaching the abilities Charmshot for 400 AP to Fusiliers and Enchant for 150 AP to Agents.