The Firearms Guide: Selecting, Operating, and Maintaining Your Tools

You’re standing at the counter, looking at a Glock 19 and a Sig Sauer P320. Both are 9mm striker-fired pistols, but the grip angle, trigger feel, and takedown procedure are completely different. That’s the reality of choosing a firearm—it’s a hands-on decision dictated by purpose, ergonomics, and mechanics, not marketing. This guide cuts through the noise with direct advice from the bench.

Defining Your Purpose: The First and Most Critical Step

Every firearm purchase must start with a clear purpose. A gun for concealed carry has vastly different requirements than one for home defense, which is different still from a competition or hunting rifle. For concealed carry, you’re looking at subcompact or compact pistols like the Sig Sauer P365 or the Springfield Hellcat. Their slim profiles and light weight make them practical for all-day carry. For primary home defense, a full-size pistol like a Glock 17 or a Smith & Wesson M&P9 2.0 offers a better grip, longer sight radius, and higher magazine capacity. If your home defense plan involves a long gun, a 12-gauge shotgun like the Mossberg 590 or an AR-15 platform rifle in 5.56mm are proven, effective tools. You can browse categories at Illinois Gunshop to see the options broken down by their intended role.

Handgun Fundamentals: Semi-Automatics vs. Revolvers

The debate between semi-automatic pistols and revolvers is about mechanics and manual of arms. Semi-autos, like the vast majority of modern defensive handguns, use energy from a fired round to cycle the slide, eject the spent casing, and chamber a new round from a detachable magazine. This gives you higher capacity (typically 10-17+ rounds in 9mm) and faster reloads. The platform is dominant for a reason. Revolvers, like the Smith & Wesson 642 or Ruger SP101, offer extreme mechanical simplicity and reliability. They are less ammunition-sensitive and have a consistent, heavier trigger pull. For a new shooter, a revolver’s operation is simpler to grasp, but mastering its double-action trigger is a skill. For a defensive tool, the semi-auto’s capacity and reload speed are significant advantages.

Long Gun Basics: Rifles and Shotguns Explained

Long guns provide greater accuracy, power, and control than handguns. Rifles fire a single projectile (bullet) through a rifled barrel, which imparts spin for stability and accuracy. Caliber choice is critical. The .223 Remington/5.56mm NATO, used in AR-15s, is a lightweight, fast round with manageable recoil, excellent for defense and varmint hunting. The .308 Winchester/7.62mm NATO is a heavier, more powerful cartridge for medium to large game. Shotguns, like the Remington 870 or Mossberg 500, fire shells containing multiple pellets (shot) or a single slug. A 12-gauge with 00 buckshot is devastating at close range for home defense, while changing the choke and ammunition type makes it versatile for hunting birds. Understanding these fundamental differences is key to selecting the right tool.

The Non-Negotiables: Safety, Maintenance, and Training

Owning a firearm is a responsibility that hinges on three pillars. First, safety: Treat every firearm as if it is loaded. Never let the muzzle cover anything you are not willing to destroy. Keep your finger off the trigger until your sights are on target. Be sure of your target and what is beyond it. These four rules are absolute. Second, maintenance: A firearm is a mechanical device. It requires cleaning and lubrication to function reliably. After a range session, field strip your pistol or rifle, clean the barrel and action with solvent, and apply a light coat of oil to moving parts. Third, and most important, is training. Formal instruction is mandatory. Then, practice regularly with dry fire and live ammunition. Proficiency with your firearm from our store is what turns it from an object into a capable tool.

They are a system. A reliable firearm from a reputable maker is the foundation. However, its performance is dictated by the ammunition. For defense, you must use quality, factory-made jacketed hollow points (JHPs) designed for reliable expansion. Never use hand-loaded or remanufactured ammunition for defensive purposes. Practice with full metal jacket (FMJ) rounds of similar weight to your defensive load to mimic point of impact.

Your journey starts with the right tool for the job. At Illinois Gunshop, we stock vetted firearms from trusted manufacturers to meet any role, from concealed carry to home defense and sport shooting. Browse our firearms collection to find the specific model that fits your needs, your hand, and your responsibility.

Last updated: March 25, 2026