Upgrading Your AR-15

04/2024
Author: Eric
Apr 01, 2024
???? 10 mins
AR-15

Why settle for a stock AR-15 when you can transform it into a machine that’s tuned just for you? We’re talking about taking a great platform and dialing it up to eleven. Upgrades can do more than just give your rifle a facelift; they can fine-tune the performance, dial in the aesthetics to reflect your personal style, and turn it into a piece that feels like an extension of yourself.

Whether you’re looking to shave off milliseconds on your target acquisition, reach out a bit further on your long shots, or just want your gun to be the one that turns heads at the range, upgrading your AR-15 is the way to go. It’s about making every component work for you, whether that’s squeezing out more accuracy, improving the feel of the trigger pull, or ensuring your rifle is as tough and ready as you are.

A picture of e ar lower side with USA Gun Store

Trigger Assembly

  • Stock Triggers: These are the standard fare, coming right out of the box. Reliable? Sure. But if you’re looking to elevate your game, you might find them a bit…lacking. They’re like the base model car – it’ll get you there, but it’s not winning any races.
  • Drop-in Triggers: Imagine swapping out that factory trigger for something akin to dropping a V8 into that base model car. These units come pre-assembled, ready to drop into your lower receiver, turning a mundane pull into a crisp, clean experience. They’re the go-to for shooters looking to upgrade without diving into a full gunsmithing course.
  • Adjustable Triggers: For those who want to fine-tune their shooting experience like a master chef tweaking his recipe to perfection, adjustable triggers are where it’s at. They allow you to dial in the pull weight, over-travel, and reset to your exact preferences. It’s about making your AR-15 as personal as your signature.

The Benefits

  • Precision: An upgraded trigger is like upgrading from a blunt pencil to a fine-point pen for your target shooting. It gives you the control and fineship you need to consistently hit those bullseyes.
  • Trigger Pull: Ever feel like you’re dragging a cinder block across a gravel road when you pull that stock trigger? Upgraded triggers offer a smoother pull, reducing the effort needed to break the shot. This means less disturbance of your sight alignment and a cleaner shot.
  • Response Time: A high-quality trigger assembly means a faster reset, which is how quickly you can fire another shot. This can be critical in competitive shooting or tactical scenarios where fractions of a second count.

Upgrading your trigger assembly enhances the connection between the shooter and the rifle. It’s not just an upgrade; it transforms your shooting experience, turning every pull of the trigger into a precise, deliberate action that feels like it was meant just for you.

Whether you’re in it for the tactical edge, the competitive advantage, or simply the joy of a perfectly tuned shooting experience, the right trigger assembly can make all the difference. It’s about finding that perfect blend of responsiveness and control that turns every shot into an extension of your will.

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Upper Receiver Upgrades

  • Length: It’s not just a number. Barrel length affects velocity, accuracy, and maneuverability. Shorter barrels are great for close-quarters action, keeping your rifle nimble and quick. Longer barrels? They’re your ticket to improved accuracy and velocity at range. It’s about matching your barrel to your mission.
  • Material: Stainless steel for precision, chrome-moly for durability, or carbon fiber for a balance of lightweight and performance – the choice of material can significantly impact your rifle’s behavior and longevity.
  • Twist Rate: This is all about stabilizing your chosen bullet weight and size. A faster twist rate (like 1:7) is ideal for heavier, longer bullets, while a slower twist (like 1:9) suits lighter bullets. Get this right, and you’ll see your groupings tighten up like a noose.

Handguard

  • Free-Floating: For the sharpshooters out there, free-floating handguards don’t touch the barrel, letting it do its thing without interference. The result? Improved accuracy, as every shot can sing without the barrel’s harmonics being thrown off.
  • Non-Free-Floating: These are for the warriors who need reliability over rough terrain and through tough conditions. They’re sturdy, can handle a lot of accessories, and are generally more budget-friendly. Just know that they might affect your barrel’s precision a tad.

A picture of e ar lantac with USA Gun Store

Bolt Carrier Group (BCG)

  • Materials and Coatings: From mil-spec steel to lightweight titanium and coatings ranging from phosphate to nitride or even nickel boron, your BCG isn’t just another part; it’s the lifeblood of your AR-15. Different materials and coatings can affect everything from reliability to ease of cleaning. Choose wisely to keep your rifle running like a champ through thick and thin.

Charging Handle

  • Ambidextrous Options: For those who don’t think the standard charging handle cuts it, ambidextrous options offer flexibility and ease of use, regardless of your dominant hand. They’re especially handy for competitive shooters or those using their rifles in various positions and situations.

When it comes to the upper receiver, it’s all about building a system that works in harmony, enhancing your AR-15’s performance to suit your specific needs, whether that’s laying down precise fire at a distance, moving quickly through a competitive course or ensuring reliability in the toughest conditions.

Each component, from the barrel to the charging handle, offers an opportunity to refine your rifle’s function and feel, making it a true extension of your skills and style.

Lower Receiver

A picture of e ar fab glcore with USA Gun Store

Stock

  • Fixed Stocks: Rock solid, stable, and unwavering, fixed stocks are the steadfast friends of marksmen aiming for precision at range. They offer a consistent shoulder weld, meaning your cheek finds the same spot every single time. They’re great for bench shooters or those who know they won’t need to adjust on the fly.
  • Collapsible Stocks: Collapsible stocks offer unmatched adaptability for the operator on the move. Whether you’re adjusting for body armor, different shooting positions, or simply packing your rifle into a tighter space, these stocks move with your needs. They’re about making your rifle fit your situation, not the other way around.

A picture of e ar fab grip with USA Gun Store

Grip

  • Ergonomic Options: The right grip can change everything. It’s where your hand meets your will to shoot. With options ranging from the basic A2 style to more ergonomic designs that cater to palm swells and finger grooves, finding the right grip is about comfort and control. It should feel like an extension of your arm, allowing for natural placement and effortless control.

Magazine

  • Capacities and Materials: High capacity for longer engagements or lower capacity for compliance with local laws—magazines are as much about strategy as they are about compliance. Materials range from durable steel to lightweight polymer, each with its own balance of weight and resilience. Your choice here is about balancing reliability with the practicalities of your shooting environment and legal landscape.

Upgrading the lower receiver of your AR-15 is about refining how the rifle feels and responds in your hands. From the solidity of your stance afforded by the right stock to the intuitive control from an ergonomic grip and down to the reliability and legality of your magazine choice—each component plays a crucial role in making your AR-15 truly yours.

This isn’t just about shooting; it’s about crafting an experience where every pull of the trigger is a testament to the thought and care you’ve put into every part of your rifle. Whether it’s the steadfast assurance of a fixed stock, the adaptable comfort of a collapsible one, the natural fit of your grip, or the reliable feed of your chosen magazine, the lower receiver is where your AR-15 meets the individual shooter in you. It’s about making sure that, no matter the situation, your rifle is as ready and adaptable as you are.

A picture of e ar gas with USA Gun Store

Gas System

A picture of e ar strike charging with USA Gun Store

Gas Blocks

  • Adjustable Gas Blocks: For those who love to tinker and optimize, an adjustable gas block offers the ultimate in customization. By fine-tuning the amount of gas flowing through your system, you can control your rifle’s recoil and cycling rate. This is particularly useful when running suppressors or when using ammunition of varying power. It’s about finding that sweet spot where your rifle runs smoothly and reliably under any conditions.
  • Fixed Gas Blocks: Simplicity and reliability are the hallmarks of the fixed gas block. Set it and forget it; your rifle will cycle consistently with the factory-set gas flow. The worry-free option works well for most standard setups and is perfect for shooters who prefer to keep their system straightforward and efficient.

A picture of e ar strike nut with USA Gun Store

Buffer System

  • Weight and Size Adjustments: The buffer system helps to absorb recoil and control the cycling of the bolt carrier group. By adjusting the weight and size of your buffer, you can tailor the feel of your rifle’s operation. A heavier buffer can smooth out the action, reduce felt recoil, and make for a more controllable shooting experience. This is crucial for both precision shooting, where every little movement matters, and rapid-fire, where control is key.
  • Buffer Tubes: Not all buffer tubes are created equal. They come in various lengths and diameters and are compatible with different stock types and buffer sizes. Ensuring you have the right combination affects the fit and comfort of your rifle and its operational smoothness and reliability.

Tweaking your gas system and buffer setup allows you to control the rhythm and feel of your AR-15’s operation. Whether you’re looking to dial in your rifle for soft shooting, adjust for different types of ammo, or simply achieve that perfectly smooth cycle, these systems offer a level of control that can transform your shooting experience.

It’s about harmony between power and control, where every component works in concert to produce a shooting experience that’s not just effective but also enjoyable. So, whether you’re fine-tuning with an adjustable gas block or optimizing your buffer weight for that perfect balance, remember: the goal is to make your AR-15 as responsive and reliable as an extension of your own will.

Optics and Sights

A picture of e ar sig with USA Gun Store

Iron Sights vs. Optical Sights

  • Iron Sights: Iron sights are rugged, reliable, and always ready for action. They’re your best friends in close quarters or when your primary optic fails. Learning to shoot well with iron sights is a foundational skill that will serve you in any scenario. Plus, there’s something undeniably raw and satisfying about lining up that perfect shot with nothing but metal between you and your target.
  • Optical Sights: Welcome to the future, where optical sights offer a range of functionalities, from red dots for quick target acquisition to magnified scopes for reaching out across distances. They can transform your shooting experience, providing clarity, precision, and speed that iron sights simply can’t match. Whether you’re plinking, hunting, or engaging in tactical scenarios, there’s an optic that can elevate your shooting game.

Mounts and Risers

  • Mounts: A solid mount is the unsung hero behind every optic, providing the stability and alignment your sight needs to perform under pressure. Choosing the right mount is about more than just fit; it’s about ensuring your optic stays zeroed, shot after shot, jump after jump. Whether you’re using a quick-detach mount for versatility or a fixed mount for rock-solid stability, the right choice keeps your sight and rifle in perfect harmony.
  • Risers: Sometimes, you need a little lift to see eye to eye with your optic. Risers elevate your sight to the optimal height for your shooting stance and eye relief, ensuring a comfortable and natural alignment. This is especially crucial for shooters with full-face masks or unique shooting postures. A properly adjusted riser can mean the difference between a strained squint and a confident, quick acquisition of your target.

Choosing the right sights and mounts for your AR-15 is a deeply personal decision that reflects your shooting style, needs, and the scenarios you prepare for. Whether you’re a purist who revels in the simplicity of iron sights or a tech-savvy shooter looking for the edge that optical sights provide, the goal is clear: to make every shot count.

So, as you consider your options, remember that the best sighting system for your AR-15 is the one that feels like an extension of your senses, enhancing your ability to engage with targets with precision, confidence, and speed. Whether through the crisp definition of a red dot or the classic profile of iron sights, your choice will define your shooting experience.

Start Upgrading

 

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