Select the type of lower receiver you want. There are two main types: stripped and complete. A stripped lower receiver is a lower receiver that does not have any parts installed. A complete lower receiver is a lower receiver that has all of the necessary parts installed.
Purchase an AR-15 lower parts kit. A lower parts kit includes all of the necessary parts to complete a lower receiver, except for the lower receiver itself.
Purchase an AR-15 buffer tube, buffer spring, and buffer. The buffer tube is a metal tube that connects the lower receiver to the stock. The buffer spring and buffer help to reduce recoil.
2. Install the lower parts kit
AR-15 LPK installation tool
AR-15 hammer
AR-15 punch
AR-15 roll pin starter
AR-15 roll pins
Install the trigger and hammer pins.
Install the disconnector and safety selector pins.
Install the magazine catch and release.
Install the bolt catch and release.
Install the buffer tube assembly.
3. Choose a barrel
AR-15 barrel
AR-15 gas block
AR-15 gas tube
AR-15 handguard
Select the length of barrel you want. The most common barrel lengths for AR-15s are 16 inches, 18 inches, and 20 inches.
Choose a gas block that is compatible with your barrel. Gas blocks come in two main types: low-profile and mid-length.
Install the gas block on the barrel.
Install the gas tube on the gas block.
Install the handguard on the barrel.
4. Choose a bolt carrier group
AR-15 bolt carrier group
AR-15 firing pin
AR-15 extractor
AR-15 ejector
Select the type of bolt carrier group you want. There are two main types: mil-spec and commercial. Mil-spec bolt carrier groups are made to military specifications, while commercial bolt carrier groups are made to civilian specifications.
Install the bolt carrier group in the lower receiver.
Install the firing pin, extractor, and ejector in the bolt carrier group.
5. Choose a muzzle device
Choosing the Right AR-15 for Home Defense
The AR-15 is a popular choice for home defense for a number of reasons. It is lightweight, accurate, and easy to use. However, not all AR-15s are created equal. When choosing an AR-15 for home defense, there are a few factors you need to consider.
AR-15 platform
The AR-15 is a modular platform, which means that you can customize it to your specific needs. There are a variety of different AR-15 platforms available, each with its own advantages and disadvantages.
M4-style AR-15s are the most popular type of AR-15 for home defense. They are lightweight and compact, making them easy to maneuver in tight spaces. M4-style AR-15s are also typically equipped with a collapsible stock, which allows you to adjust the length of pull to your individual needs.
AR-15s with longer barrels are more accurate than M4-style AR-15s, but they are also heavier and less maneuverable. Longer barrels are beneficial for precision shooting, but they are not as well-suited for close-quarters combat.
AR-15s with shorter barrels are more maneuverable than M4-style AR-15s, but they are less accurate. Shorter barrels are beneficial for close-quarters combat, but they are not as well-suited for precision shooting.
Barrel length
The barrel length of an AR-15 is an important consideration for home defense. The longer the barrel, the more accurate the rifle will be. However, longer barrels are also heavier and less maneuverable. For home defense, a barrel length of 16 inches is a good compromise between accuracy and maneuverability.
Caliber
The caliber of an AR-15 is another important consideration for home defense. The most common caliber for AR-15s is 5.56mm. This caliber is effective for self-defense at close range, and it is also relatively affordable. However, 5.56mm ammunition can be difficult to find in some areas.
Another option for home defense is .223 Remington. This caliber is smaller and lighter than 5.56mm, making it a good choice for smaller shooters. However, .223 Remington ammunition is not as powerful as 5.56mm ammunition.
If you are concerned about over-penetration, you may want to consider a .300 Blackout AR-15. This caliber is designed for suppressed rifles, and it is also effective for self-defense at close range. However, .300 Blackout ammunition is more expensive than 5.56mm or .223 Remington ammunition.
Optics
An optic can be a valuable addition to an AR-15 for home defense. A red dot sight or holographic sight can help you to quickly acquire targets in low-light conditions. A magnified optic can be helpful for precision shooting.
When choosing an optic for your AR-15, consider the following factors:
Your shooting skill level. If you are a novice shooter, a red dot sight or holographic sight is a good option. If you are a more experienced shooter, you may want to consider a magnified optic.
The intended use of the rifle. If you plan on using your AR-15 for home defense, a red dot sight or holographic sight is a good option. If you plan on using your AR-15 for hunting or target shooting, a magnified optic may be a better choice.
Your budget. Optics can range in price from a few hundred dollars to several thousand dollars. Choose an optic that fits your budget and your needs.
Ammunition
The type of ammunition you use in your AR-15 for home defense is an important consideration. The best ammunition for home defense is a hollow-point bullet. Hollow-point bullets expand upon impact, creating a larger wound cavity and increasing the likelihood of stopping a threat.
When choosing ammunition for your AR-15, consider the following factors:
Your intended use for the rifle. If you plan on using your AR-15 for home defense, you should choose a hollow-point bullet. If you plan on using your AR-15 for hunting or target shooting, you may want to choose a different type of bullet.
The caliber of your rifle. The caliber of your rifle will determine the type of ammunition you can use.
Your budget. Ammunition can range in price from a few cents per round to several dollars per round. Choose an ammunition that fits your budget and your needs
3. AR-15 Safety
Basic Safety Rules
The AR-15 is a powerful rifle, and it is important to use it safely. Here are some basic safety rules to follow:
Never point the muzzle at anything you do not intend to shoot. This is the most important safety rule of all. Even if you think the gun is unloaded, always treat it as if it is loaded.
Be sure the safety is on before handling the gun. The safety should be on whenever you are not actively shooting.
Keep your finger off the trigger until you are ready to fire. This is another important safety rule that can help prevent accidental shootings.
Be aware of your surroundings when shooting. Make sure there are no people or animals in the line of fire.
Know your target and what is beyond it. Be sure you are aiming at the target you intend to shoot and that you are aware of what is behind the target.
Follow all the instructions that came with your AR-15. The manufacturer’s instructions contain important safety information that you should read and understand before using the rifle.
Storage and Maintenance
When you are not using your AR-15, it is important to store it safely. Here are some tips for storing your AR-15:
Store the gun unloaded. The gun should be unloaded and the magazine removed before storing it.
Store the gun in a safe place. The gun should be stored in a safe that is difficult for children or unauthorized persons to access.
Clean and oil the gun regularly. Cleaning and oiling the gun will help to keep it in good working condition.
Inspect the gun regularly. Inspect the gun regularly for signs of wear and tear. If you see any problems, have the gun repaired or replaced.
Transporting Your AR-15
When you are transporting your AR-15, it is important to do so safely. Here are some tips for transporting your AR-15:
Unload the gun and remove the magazine. The gun should be unloaded and the magazine removed before transporting it.
Keep the gun in a case. The gun should be kept in a case that is sturdy enough to protect it from damage.
Transport the gun in a vehicle that is locked. The gun should be transported in a vehicle that is locked so that unauthorized persons cannot access it.
4. AR-15 Use for Home Defense
Legal Considerations
Before you use an AR-15 for home defense, it is important to be aware of the legal implications. The laws governing the use of firearms for self-defense vary from state to state. It is important to know the laws in your state before you use a firearm for home defense.
In general, the use of deadly force is justified in self-defense when you reasonably believe that you are in imminent danger of death or serious bodily injury. However, the specific circumstances of each case will determine whether the use of deadly force was justified.
If you are ever involved in a self-defense shooting, it is important to cooperate with the police and to seek legal counsel.
Tactics and Techniques
There are a number of different tactics and techniques that you can use to use an AR-15 for home defense. The best tactics and techniques for you will depend on your individual circumstances.
Some general tips for using an AR-15 for home defense include:
Have a plan. Before you ever need to use your AR-15 for home defense, you should have a plan in place. This plan should include where you will position yourself in your home, what you will do if you are confronted by an intruder, and how you will communicate with the police.
Be aware of your surroundings. When you are defending your home, it is important to be aware of your surroundings. This includes knowing where the exits are, where the potential hiding places are, and where the potential lines of fire are.
Use cover and concealment. When you are defending your home, it is important to use cover and concealment to protect yourself from the intruder. Cover can protect you from bullets, while concealment can help you to stay hidden from the intruder.
Be prepared to fight. If you are ever confronted by an intruder, you should be prepared to fight. This means being mentally prepared to use deadly force, and being physically prepared to fight for your life.
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