1. Know that buying used guns for sale will often offer the advantage of finding a gun with all the features you want at a fraction of the cost of a new firearm.

2. Know which type of gun you are interested in. Research the makes, models, caliber and functionality of different types of guns. Some guns are more commonly found as used guns for sale.

3. Know the seller: Personally knowing and trusting the person you are purchasing from is preferable. Other acceptable alternatives may include purchasing from a respectable and established gun shop that has used guns for sale or acting upon a dependable recommendation or testimonial from someone who has purchased used guns.

4. Know that used guns for sale are likely to have normal wear and tear. Minor scratches or wear from ammunition ejection may be visible. All screws should be tight.

5. Know how to look for any visible signs of damage. The barrel should be straight and without any bulges. The inside should be clean, smooth and well cared for. If it is dirty, ask the owner to clean it. Rifling should not have rough edges or gouges. Inspect used guns for sale for signs of rust or corrosion.

6. Know what you are comfortable with. Grip the gun in your hand to evaluate the fit and feel. Ask gun or shop owners if used guns for sale may be dry fired to help you get a feel for the guns functionality.

7. Know sale conditions. Ask about testing and warranty. Gun or shop owners may also allow you to take the used guns home or to the range for additional testing to ensure the sale.