Yes, each new PRS comes with adjustment tools. For most models, this includes a truss rod wrench and any allen wrenches needed for the bridge. If you did not receive these items with the purchase of your new guitar, your dealer will be able to provide them.
To purchase a replacement trem arm or wrench kit, adjustment tools can be purchased at the following link: PRS West Street East Accessory Shop | Guitar Care & Maintenance
To find your guitar's tool specifications, visit the following article: Adjustment Tool Specifications