Next, you'll be wanting in order to think about caliber. Colt guns come in several sizes and calibers, therefore determining which one offers that the appropriate amount of stopping power without too much recoil is crucial. Generally, 9mm or .45 ACP are popular selection for self-defense.Once you have determined your purpose and also caliber preferences, it is the right time to think about size and weight. Your smaller, lighter gun is ideal for carrying on your own person, while a larger, thicker gun is better matched for home protection purposes. Give Consideration To how much weight you're comfortable carrying to using for extended periods.