Double-Action Entendres

I think designing firearms would be an awesome job to have. Almost as fun would be coming up with cool names for said firearms. I love the double entendre names for guns that mean one thing by themselves, but something entirely different when applied to a firearm. Name like Peacemaker, Persuader, Liberator, and Defender. Here are a few of my own firearms name I came up with and what I think the gun would be.
1. The Problem Solver – All purpose assault rifle with scope and grenade launcher attachment.
2. The Panacea – Reliable, semi-automatic handgun (I’m thinking .45), compact enough for concealment.
3. The Negotiator – Compact sub-machine gun with integral silencer.
4. The Surgeon – Highly accurate sniper rifle.
5. The Ombudsman – Expensive, shiny .357 magnum revolver.
If you have any more ideas, put them in the comments section.