If you're new to the AR-15 community, there can be a lot of potentially confusing terminology thrown around. Even so many have heard the term AR-15 upper.  Whether you're a seasoned firearm owner or new to the world of guns, familiarizing yourself with the terminology and understanding the different components of the AR-15 is crucial to fully enjoy the benefits of this versatile firearm. One of the reasons the AR-15 is so popular is because of its ease of customization. However, before you start customizing your AR-15, it's important to know the various components and how they work together.

AR-15 Upper Receiver vs Lower Receiver

First and foremost, it's essential to understand the distinction between the upper and lower receivers. The lower receiver is the serialized part of the AR-15 and is considered the firearm itself. This means that it needs to be registered and bought through a licensed dealer. On the other hand, the upper receiver and its components can be purchased from various sellers, including online retailers. This flexibility has allowed manufacturers and designers to create a wide range of custom AR parts and accessories. So, when you're shopping online for a new rifle handguard or barrel length, rest assured that you're not doing anything illegal. However, it's important to check your state laws as there may be restrictions on certain accessories or components.

When it comes to the AR-15 upper receiver, almost every part can be swapped out for a different option. However, one crucial consideration is ensuring that the components you choose are designed to chamber the same caliber rounds. With that in mind, let's explore some of the options available for the upper receiver.

Carry Handle Upper Receiver or Flat Top

The first choice to make is between a flat top or a carry handle. A flat top upper receiver comes with a flat Picatinny rail on top, allowing you to attach various accessories such as optics, sights, and scopes. On the other hand, a carry handle upper receiver has a built-in carrying handle that serves as a sighting system. The designation of A1, A2, A3, and A4 refers to different generations of the M16, which is the U.S. Military's version of the AR-15. While there are other differences between these generations, the main distinction for our purpose is whether they have a flat top or a carry handle. When choosing an upper receiver, you'll need to decide whether you want the flexibility of a flat top or the convenience of a carry handle.

Construction and Materials Matter

Another important consideration is the construction and material of the upper receiver. There are three main options: forged, billet, and cast. A forged upper receiver is made by hammering the metal into shape and then finishing it with a CNC lathe. These receivers are generally heavier and denser, but they make up for it with increased hardness and fatigue limit. Billet upper receivers, on the other hand, are machined from a solid block of metal using a CNC machine. They are usually lighter than forged receivers but may be slightly less durable. Cast receivers are made by pouring molten metal into a mold, and they are generally the lightest option. However, due to the casting process, they may not be as durable as forged or billet receivers.

Other AR15 Upper Options

Consider how much DIY (Do-It-Yourself) work you want to undertake when purchasing an upper receiver. You'll come across different categories of options beyond what we've already discussed. A stripped upper receiver is the bare receiver without any additional components. A complete upper receiver typically includes the receiver, ejection port door, and forward assist button. On the other hand, a complete upper assembly includes these three components along with the barrel, handguard, charging handle, and sometimes even the bolt carrier group.

Personalize With Rail Accessories

Once you have your upper assembly, it's time to personalize it with the accessories you desire. Rail mount accessories such as a rifle handguard with RailScales or a vertical grip can enhance your grip and improve accuracy while shooting, provided you practice regularly. RailScales offers lightweight, low-profile, and heat-resistant rifle handguard accessories that can help you customize your AR-15 to your preferences.

When it comes to finding high-quality AR15 accessories, RailScales is a brand that stands out. They offer a wide range of innovative and top-notch products designed to enhance the precision and accuracy of your AR-15 rifle. RailScales is known for their commitment to quality craftsmanship, attention to detail, and the use of premium materials in their products.

Standout AR Accessory- RSB® Vertical Grip

One of the standout products from RailScales is their RSB® Vertical Grip. This fully machined, ultralight stubby aluminum grip is designed for PDW (Personal Defense Weapon) and shorter barrel setups, but its ergonomic design also makes it suitable for carbines. The RSB® Vertical Grip features a cylinder offset of 0.140", allowing for fine adjustment in its already small footprint by alternating its direction. Whether used as a broom handle style grip or with a three-fingered grip, the RSB® Vertical Grip offers enhanced control and comfort. It is also XOS-H® scale compatible, allowing for easy customization and personalization. 

RailScales offers a variety of other accessories to complement your AR-15 rifle. Their product lineup includes hand stops, iron sights, non-slip scales, and more. Each product is meticulously designed to meet the demands of shooters who prioritize precision and accuracy. Whether you are a competitive shooter, a law enforcement professional, or an avid enthusiast, RailScales has options to suit your needs.

What sets RailScales apart is their commitment to excellence and their dedication to American manufacturing. All RailScales products are made in the USA, ensuring the highest quality standards and supporting local industries. When you choose RailScales, you can trust that you're getting accessories that are built to last and perform under demanding conditions.

Upgrade To The Best AR15 Upper Accessories

To explore their full range of AR-15 accessories and learn more about RailScales, browse our site, www.railscales.com. Our website provides detailed product information, compatibility details, and the ability to purchase directly from their online store. Whether you're looking for a vertical grip, handguard accessories, or other precision-enhancing accessories, RailScales has you covered.

In conclusion, RailScales is a trusted brand in the AR-15 community, known for their high-quality accessories designed to enhance precision and accuracy. With their dedication to craftsmanship, attention to detail, and commitment to American manufacturing, RailScales provides shooters with reliable and top-notch products. Visit their website today to explore their range of accessories and elevate your AR-15 shooting experience.