July, 15

AR 15 Ejector: A Complete Guide to Understanding Its Importance in Firearm Functionality

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The AR 15 ejector is a crucial component of any AR 15 rifle. It is responsible for extracting spent cartridges from the chamber and ejecting them out of the firearm. Without a properly functioning ejector, an AR 15 rifle would be rendered useless.

Many gun enthusiasts consider the AR 15 to be one of the most versatile and reliable rifles on the market today. However, even this weapon can experience issues with its ejector over time due to wear and tear or other factors such as improper maintenance or poor quality parts.

In this article, we will delve deeper into what an AR 15 ejector does, how it works, common problems that can arise with it and how to troubleshoot them. We will also provide tips on proper maintenance techniques that can help prolong the life of your firearm's components. Read on to learn more about this essential part of your rifle!

AR-15 Ejector: Everything You Need to Know

If you are a gun enthusiast or someone who loves shooting, then you might have heard about the AR-15 rifle. This semi-automatic rifle has become one of the most popular firearms in the US, thanks to its versatility and ease of customization. One of the crucial components that make this rifle function smoothly is its ejector.

The AR-15 ejector plays an important role in ensuring that spent rounds are ejected from the chamber after each shot. It is a small but essential part that can affect your shooting accuracy and overall experience if it fails or malfunctions.

In this article, we will explore everything there is to know about AR-15 ejectors – from how they work to their maintenance and replacement tips.

What Is an Ejector?

An ejector is a component found in firearms such as rifles, pistols, and shotguns. Its main function is to extract spent cartridges from the chamber once they've been fired so that new ones can be loaded into place for another round of firing.

There are two types of ejection systems commonly used in guns – extractors-only system (pulls out casings) and extractor-ejectors system (pushes out casings). The latter type includes both an extractor claw for pulling out empty brass cases from chambers and an ejector plunger responsible for pushing them away from magazines or chambers.

How Does An Ejector Work?

AR-15 rifles use gas impingement systems where high-pressure gases generated by burning powder propel bullets through barrels with enough force while simultaneously producing energy used by bolt carrier group components like cam pins, bolts lugs cycling actions.
As soon as you pull back on your charging handle which pulls back on bolt carrier assembly via recoil spring tension towards receiver extension tube's rear end forces rotating into position locking lugs inside barrel extension onto receiver parts; now ready-to-fire cartridge is chambered.

When the trigger is pulled, the hammer hits the firing pin, which then strikes the primer on the cartridge. The primer ignites a small explosion that propels bullets through barrels with enough force to cycle bolt carrier group components like cam pins and bolts lugs in AR-15 rifles. This cycling action moves spent rounds back towards ejector mechanism where an ejector plunger pushes them out of ejection port located at RHS (right-handed shooter) or LHS (left-handed shooters) side receiver wall while simultaneously chambering new rounds from magazines.

AR-15 Ejector Comparison: M16 Vs. M4

The military originally designed both M16 and its shorter version, M4 carbine based on earlier Eugene Stoner's design of ArmaLite Rifle model 15.
Although these two firearms share many similarities in terms of design and functions, there are some differences between their ejectors as well.

The biggest difference between them lies in their position – while M16's ejection port is located on top of its upper receiver assembly, resulting brass casings ejected at approximately 1 o'clock angle relative to barrel boreline; conversely for newer sibling member -M4 Carbine has right-side mounted ejection ports that send empty cases out closer to shooters' faces at around 3 or 4 o'clock angles.
This difference might seem insignificant but can affect shooting accuracy when firing around obstacles or using optics.

Benefits Of A Reliable Ejector

A reliable AR-15 ejector is essential for smooth operation and accuracy when shooting your rifle. Here are some benefits you can expect from having a properly functioning one:

  1. Consistent Extraction: A good-quality ejector ensures consistent extraction after each shot without fail so that you don't have any jams during rapid firing sessions.

  2. Improved Accuracy: Because an efficient extractor removes shells smoothly & reliably every time spent cartridges exit chamber, it improves the overall accuracy of your shots.

  3. Easy Maintenance: AR-15 ejectors are easy to maintain as they are small components with simple designs that can be quickly replaced when needed.

Tips for Maintaining and Replacing Your Ejector

To ensure your AR-15 ejector functions efficiently, you need to keep it clean and well-maintained. Here are some tips on how to do that:

  1. Regular Cleaning: Make sure you regularly clean your rifle, including the ejector parts at least once every month or after about 500 rounds fired.

  2. Lubrication: Apply a light coating of oil or grease over the entire surface area of the bolt carrier group components including cam pins & extractor claws in order lubricate them enough so they slide smoothly against other metal surfaces without causing any wear tear damage during cycling actions.

3.Replacement – If necessary replace damaged parts right away by obtaining new ones from reputable manufacturers such as Aero Precision , BCM ( Bravo Company Manufacturing) or Brownells who produce high-quality aftermarket replacement parts.


AR-15 Ejectors play an important role in keeping your rifle functioning efficiently while ensuring accuracy and reliability when shooting.
Make sure you get one made with quality materials designed specifically for use with this type of firearm system if ever replacing old worn out part become necessary down road ahead!


What is an AR 15 ejector and how does it work?

The AR 15 ejector is a small but vital component of the firearm's firing mechanism. It functions to expel spent casings from the weapon's receiver after a round has been fired. The ejector works in tandem with the extractor, which removes spent casings from the chamber.

When a shot is fired, gas pressure generated by burning powder pushes the bullet out of the barrel and sends energy back through channels in the bolt carrier group, causing it to unlock from its position against barrel extension lugs. As this happens, a claw-shaped extractor pulls on a casing rim or base as well as tilts it upwards out of its chamber. The ejector runs alongside and engages with this casing that has just been extracted then kicks it away via an ejection port when triggered by contact between two metal surfaces.

The process repeats itself for every new shot until one decides to stop firing. It’s important that both extractor and ejector do their jobs correctly; otherwise issues like stovepipes (where empty cartridge cases become jammed vertically inside gun) may occur.

Can I replace my AR 15 Ejector myself or should I take it to a gunsmith?

Replacing an AR-15 Ejector can be done at home if you have some knowledge about firearms maintenance and disassembly processes associated with your specific type of rifle — however, if you’re unsure about safety measures or how certain parts should fit together once reassembled correctly again we recommend taking your firearm into experienced hands instead i.e., professional gunsmiths who will likely offer expert advice regarding other potential areas that require attention too such as springs wear over time affecting performance etc..

If you're confident enough tackling disassemble/assemble tasks yourself then there are many guides online available for free use which demonstrate each step involved during installation process – these usually come complete images indicating where necessary parts go and precise tool requirements.

What are the signs that my AR 15 ejector needs replacing?

There are several indicators that your ejector may need replacement. The most common is when you start experiencing cases jamming or failing to be ejected from the weapon's receiver. This could indicate a problem with either the extractor, which pulls casings out of the chamber, or with your ejector itself.

Other symptoms include issues like erratic ejection patterns where your casings fly off in random directions; dented brass on shell casings; shells landing too close to gun owner’s face; rounds not fully being extracted from chamber etc..

If you notice any of these issues it's always best to have a professional check out and diagnose what may be causing them as soon as possible before further damage occurs which could lead to more expensive repairs needed down line such as swapping whole parts for ones perfectly fit firearm specifications instead of just finding faulty part replacements.

Can I improve my AR 15 Ejector's performance?

Yes! There are several ways in which an individual can enhance their rifle by improving its firing mechanism – one popular option for this includes upgrading springs or other small components within assembly such as high-quality materials i.e., titanium metals rather than standard steel offerings used during manufacturing process originally if desired.

Another way people go about improving functions would be using specialized lubricants formulated specifically towards firearms mechanics since they often work better under hot conditions (which rifles tend encounter while being fired) than general purpose lubrication oils sold at hardware stores — applying these products correctly will ensure smoother operation firearm helps reduce wear tear over prolonged use also extending life expectancy rifle too!

Many manufacturers offer upgrade parts themselves although some prefer sourcing custom options online customized according shooting preferences overall quality enhancements wanted aiming tailor-made solution specific personal preferences equipment likely used alongside rifle such optics accessories etc…

How do I properly maintain my AR 15 Ejector?

A proper maintenance routine for your AR 15 ejector involves regular cleaning, lubrication, and inspection. During disassembly times (which should be done every time firearm is used) pay special attention to the extractor and ejector parts which are most susceptible to wear tear after prolonged use.

Cleaning should begin by removing any remaining dirt or debris from firing mechanism using an appropriate tool such as toothbrush along with solvent agent (like rubbing alcohol). Afterward dry everything thoroughly before applying lubricant products via dropper onto areas where metal touches metal ensuring not overdo amount applied since excess may drip towards other parts causing unwanted damage.

Periodic inspections will also allow you to identify issues that could lead malfunctioning such as signs excessive wear on springs or cracks in casing materials i.e., polymer offerings like Magpul PMAGs being used instead of traditional magazines made out aluminum steel alloys etc…

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