The Peacemaker is a long range, rifle-like weapon that can be obtained when you are level 15 for 125 Topaz. It's extremely useful for defending/securing claims and PVP as stated by the Weapon Lexicon.
Attacks Target in far range and inflicts 300% damage on hit.
Extra Power: 150% increased hit chance for 8 seconds
Extra power: Paralyzes target for 8 seconds.
"These precision rifles trace back to the early shotguns that the first settlers used on their drives with great success.
The Peacemaker has been developed to hit targets from a great distance. Its penetration power provides for bringing down targets with few, but effective shots. When it was first put to use in the battle for Dinoville Canyon the Peacemaker turned the tide towards the colonists and has since had its firm place in Dinoville’s history.
Nowadays this laser gun is the preferred option for securing claims, and it can also play an important role in clan wars."