300 Blackout Uppers

Upgrade Your Upper Assembly With Mid State Firearms

Explore our top-quality 300 Blackout upper assemblies, designed for exceptional performance, suppression, and versatility. Each 300 Blackout complete upper is rigorously headspace checked and test-fired before shipping to ensure reliability and precision.

Check Out Our Selection of 300 Blackout Complete Uppers

In this guide, we’ll help you decide whether a 300 Blackout upper is right for you and which one best suits your needs. Let’s begin with the following questions:

Should I Buy a 300 Blackout Upper?

The answer is a resounding yes! Whether you are building your AR-15 from the ground up or upgrading an existing AR, a 300 Blackout upper is an excellent choice. A 300 Blackout AR15 upper provides the performance and versatility needed for various applications, including tactical and hunting scenarios. These upper assemblies come in a variety of lengths, from compact 7.5-inch barrels ideal for AR15 Blackout uppers for pistols, to longer 16-inch barrels perfect for precision shooting or a more stable platform.

What is 300 Blackout?

The .300 AAC Blackout, also known as 7.62x35mm, is a unique American-made cartridge known for its excellent performance in AR15 Blackout rifles. This subsonic round excels in suppressed shooting, offering low recoil and the ability to take out targets at distances up to 300 yards. The 300 Blackout upper is engineered to handle this powerful round effectively, making it a popular choice among enthusiasts and professionals alike.

.300 Blackout vs. 5.56 NATO

The 300 Blackout and 5.56 NATO cartridges differ significantly in terms of performance. The 300 Blackout upper delivers more recoil (9 pounds) compared to the 5.56 NATO (about a third of that). Additionally, 300 Blackout rounds are heavier and have a shorter effective range, whereas 5.56 NATO rounds can travel up to 500 yards. Despite these differences, the 300 Blackout upper remains a top choice for AR15 Blackout rifles, offering superior performance in suppressed setups and short-range engagements.

Why Buy a 300 Blackout Upper?

There are numerous reasons to consider purchasing a complete 300 Blackout upper assembly. The 300 Blackout AR15 upper is especially effective for suppressing muzzle blasts, which makes it ideal for tactical applications and home defense. You can also customize your 300 Blackout upper with scopes, red dots, and other accessories like flashlights. Reliability is paramount, especially in critical situations, so choosing a durable and high-quality AR15 Blackout upper will ensure your setup can withstand rigorous use.

How to Choose the Best 300 Blackout Upper?

Selecting the best 300 Blackout upper assembly depends on your specific needs. If you’re looking for a ready-to-go solution, a 300 Blackout complete upper may be the perfect choice, offering all the necessary parts preassembled. For those building their first rifle, a complete 300 Blackout upper simplifies the process, saving time and effort.

If you’re opting for a more customized build, a standalone 300 Blackout upper receiver allows you to handpick each component, tailoring the rifle to your exact specifications.

Does It Require Any Extra Parts to Work?

Yes, if you’re building an AR-15 with a 300 Blackout upper and not purchasing a complete upper assembly, there will be additional parts required. These parts may include but are not limited to suppressors, gas systems, and barrels. Fortunately, many components for 300 Blackout uppers are available as drop-in parts, making installation easier for both experienced builders and beginners.

Ready to Upgrade Your AR-15 with a 300 Blackout Upper?

Whether you’re building a custom rifle or upgrading your existing setup, our high-quality 300 Blackout upper assemblies offer the performance and reliability you need. Explore our selection of AR15 Blackout uppers and find the perfect fit for your next project.

Shop now and take your shooting experience to the next level with a premium 300 Blackout upper from Mid State Firearms!