OP, you have asked the age old, most answered, rarely agreed upon, firearms question, on the internet.
You are going to get many different opinions and answers, but only you know what will work best for you. There are pros and cons to all platforms and without knowing your level of comfort, skill set, budget and even body type, all answers will be just opinions.
12ga, pump action shotguns are extremely versatile, but honestly, one of the most over rated firearms available, that everyone owns.
- Recoil is significant. Many new shooters don't want to take the beating of frequent range trips.
- Malfunctions are common in high stress situations. The most common being short stroking.
- Accuracy is not what people think. People think you don't have to aim with a shotty. Those people are wrong.
- Training has to be done at an outdoor range.
- Not taking out of the home for self defense and tough to maneuver in close quarters for home defense.
- Best option if you ever have to put food on the table
AR/AK/ Magazine fed rifle are less versatile than a shot gun, and even an inexpensive build is more than a decent 12ga
- Easy to shoot. Recoil is very manageable
- Effective range is far greater than a shotty.
- Not ideally suited for home defense because of size. And noise
- Could put food on the table in a pinch.
- Need access to an outdoor range to practice
Handgun can be carried outside the home for self defense.
- Takes more practice to become proficient. It's a lot easier to miss with a pistol.
- 9mm is the most popular caliber and can be the most affordable. Recoil is very manageable and ammo choices are many.
- Handguns are less lethal than long guns.
- Indoor range is fine. Can practice a lot without going to the range. Lots of good training videos available for free, and while not a substitute for live fire, can be very useful.
- Not going to put food on the table.
Those are just some, but not all, of the FACTS. To give honest opinions, we need more info.
Do you ever want to carry? Some people don't and that is OK.
Are you physically able to handle a lot of recoil? If you are 60 and have arthritic shoulders a 12ga pump will never get used.
What kind of budget can you set aside for ammo? Lets say you can get out to shoot once a month. It's pretty easy to rip through 200 rounds with a handgun. Roughly $100 bucks. Can you set aside $25 a week for ammo? AR's gobble up ammo. 30 rounds in an AR goes quick, even when you are trying to slow down.
What type of dwelling do you live in, and how many occupants? If you live in an apartment complex, with 50 people in a 100' radius, your choices may be different than if you live alone in a single family dwelling with 150' to your nearest neighbor.
Whatever you decide, jump right in. You can always sell a firearm that doesn't work for you. With a handgun, there are lots of inexpensive training methods available and lots of resources here on NES.
"Welcome to the party Pal"
I work close to Franklin. When you make a purchase, hit me up for a free box of ammo, and some eye and ear protection.