300 Blackout Upper Palmetto State

Being a complete upper receiver, a charging handle and bolt carrier group are included. This very simple system will have you chomping at the bit to get out and use it. You get a quality 16-inch barrel with 1-7.5 inch twist and threaded muzzle. ManufacturerManufacturerPalmetto State ArmoryCaliber300 BlackoutBarrel Length16''Weight3.7 lbsPrice Range$300-$400The upper from PSA offers a decent balance of features at a low price.

A pistol length gas system helps to keep recoil low, while a forged receiver and a barrel with a nitride finish makes that it can stand up to rough use. The muzzle also features a flash hider to make sure you can fire without losing your night vision. The manufacturing quality is high for its price and good enough for most users, but it's not the best 300 blackout upper available.

This is a great budget option for new shooters, but experts might want something a little bit better and slightly more expensive. The 9″ barrel on this 300 Blackout upper is ideal for the 300 BLK cartridge. Combined with a lower, this thing is an ideal home defense and even hunting setup. Additionally, the barrel is chrome-lined for added durability, corrosion resistance, and heat tolerance.

This 2.2-pound upper is made of a MIL-SPEC Manganese Phosphate finish with an outside coating to prevent pitting, rust and scratching. This upper comes without a bolt carrier group or charging handle, much like the Aero. These barrels are compatible with both a carbine buffer, subsonic and high-velocity ammunition.

However, BCM cannot guarantee that all ammo types will function in all conditions. The shorter barrel causes it to lose some accuracy over long distances compared to BCM's other offerings, but it significantly reduces weight and boosts maneuverability in close quarters. A tapered barrel improves those areas even more, while a chrome lining in the chamber and manganese phosphate finish help to make it more durable.

Pick this upper receiver if you need something light, maneuverable, and cost efficient, regardless of your skill level. ManufacturerManufacturerSpike's TacticalCaliber300 BlackoutBarrel Length8.3''Weight3.875 lbsPrice Range$800-$900The upper from Spike's Tactical stands out more for its quality than for any special features. The gun's core components, which include a continuous top rail, a nitride coating, and a pistol gas system, are fairly standard but executed to perfection and tested thoroughly before shipping. The exception is the Barking Spider muzzle brake, which has an unusual modular design that can suppress noise, boost performance on short barrels, and be tailored to specific situations.

General quality might make this the best 300 blackout upper for all shooters, but experts might want to consider spending slightly more to get a top of the line design. Oh, and best of all, easily running both supersonic and subsonic in the same rifle with absolutely no change in the gun. In fact, it is this latter capability that 300 BLK owners find most attractive. So the .300 Blackout can drop a deer at 200 yards, or lob 30-cal lead downrange with little more noise than a cycling bolt.

When it comes to the barrel, it has superior corrosion resistance because of its nitride finish. Additionally, the PSA 8.5″ is designed to handle supersonic rounds with excellent precision. Also, the bolt carrier group is built out of 158 Carpenter steel. Lastly, the M-Lok handguard is already equipped for an easy mount of sights and accessories. ManufacturerManufacturerDaniel DefenseCaliber300 BlackoutBarrel Length10.3''Weight3.65 lbsPrice Range$1100-$1200The 300S is the best 300 upper for use in adverse conditions. It has a short barrel, so it's fairly easy to maneuver in close quarters, but it can still shoot accurately.

It also features a flash suppressor to make the gun easier to use in the dark. Since it uses a pistol-length gas system, recoil is minimal and reliability is high. For those who like to tinker, this model also includes space for accessories. Those features make it a top choice for anyone who expects to use their gun in challenging situations, whether they are experts or novices. It is a complete upper receiver that benefits from Foldar's patented folding upper receiver technology. The technology that allows this folding mechanism is known as the company's SHUT Locking hinge And right out of the box you can expect a quality made upper.

It comes complete with a precision barrel, a 'free float' handguard, and a flash-hiding muzzle device. Lastly, this is a complete upper receiver, so it does include a charging handle and bolt carrier group. The S&W M&P Whisper is a simple system that's easy to suppress and rearing to go out of the box. Finding the best 300 blackout upper comes down to striking a balance between cost and quality. Everyone will weigh those two factors differently, so it's useful to look at as many options as possible when hunting for the right upper receiver group. If you know of an option that we overlooked, or want to add something about one that we reviewed, be sure to do it in the comment section.

And if would like to give your rifle a further boost, here is a list of the best red dots for you to consider. ManufacturerManufacturerBravo Company ManufacturingCaliber300 BlackoutBarrel Length16.1''Weight3 lbsPrice Range$600-$900This model from BCM is the best 300 blackout upper for most users. It's reasonably affordable, but the production quality is on par with the most expensive options. The barrel is tapered to reduce weight and boost maneuverability, while fluting near the back strengthens it and helps to reduce heat. This set also includes a few bonuses, such as a sling mount, which makes life easier for novices who have never modified a gun before. The receiver's quality makes it equally appropriate for experts, so everyone should consider this upper receiver.

A 10-inch barrel on an AR pistol or a short barreled rifle is perfect for the .300 Blackout. The uppers all feature different length handguards, that accommodate the mounted flash suppressor. The barrels are all equipped with a standard A2 muzzle brake that's been proven efficient and effective. It features a black anodized coating and quality construction to make sure it won't break down, and a muzzle brake to help control recoil while firing.

The system also includes an extended hand guard, which can improve comfort and make it easier for novices to fire with proper form. It's a little bit on the expensive side, so it's only a good choice for those who shoot regularly, but it's a great pick for intermediate shooters who are still trying to perfect their skills. You get flexibility in barrel choice of either 8.7 inch or 14-inch barrel. And its classy features include an enhanced, full-automatic rated bolt carrier group and the renowned Radian Raptor-SD ambidextrous charging handle. All-in-all you are getting a quality upper which is packaged in a very stylish design.

You can choose whether to take a bolt carrier group and charging handle or not. There is also a good selection of thelightest AR-15 handguard configurations available. You have 2 top quality, 416R stainless steel barrels to choose from — either 8.7 inches of 14.5 inches. And when used with Black Hills Match Grade ammunition you are guaranteed Sub-MOA accuracy. The billet upper receiver and M-Lok handguard are of the highest quality.

While its sleek design will have heads turning wherever you shoot. Build quality on the PSA pistol is extremely well-done. It has a properly staked M16 bolt carrier, and the fit and finish is excellent. The aluminum hand guard is MLOK compatible with short sections of Picatinny on top for sights and or optics .

If you want an upper receiver group that works right out of the box, get a full upper receiver with a bolt carrier group and charging handle. Remember that you can keep your 5.56 lower if you install a .300 Blackout upper and barrel. The handguards on these Aero uppers come in a variety of lengths to accommodate the attached flash suppressor. You can remove the flash hider and install a muzzle brake or suppressor instead. Additionally, you'll find a gas system that's about the size of a handgun here.

The M4E1 uppers also come with Keymod rail systems and are chambered for the.300 Blackout round. Moreover, the upper comes with a typical M4 feed ramp, which improves carbine and pistol accuracy. The PSA 16" .300 Blackout Upper Receiver sports 7075 T6 aluminum material and has an M4-type design. It is complete with a .300 Blackout bolt carrier group, forward assist, handguard, and a barrel.

The entire upper is also coated in nitride for added rust and corrosion resistance. The pistol-length gas block is ideal for the .300 Blackout round as well. The PSA 8.5" .300 Blackout is a solid upper receiver if you are looking for a compact pistol length option. This upper is ideal for tactical and hunting purposes. It is also much more maneuverable in tight conditions. In addition, the receiver itself is built out of 7075-T6 aluminum and has a hard-coated anodized finish.

Thus, it is wear and tear-resistant, as well as being highly durable and lightweight. ManufacturerManufacturerAero PrecisionCaliber300 BlackoutBarrel Length16''Weight3.375 lbsPrice Range$400-$600The M4E1 is the best 300 blackout upper for budget shoppers. The manufacturing quality is high, especially compared to the cost, and it does have a few features that make is stand out. Notably, the handguard features heavy milling for an improved grip, and there is a quick disconnect sling socket for convenience. I built both of my 300BLK uppers using Anderson and Bear Creek uppers and two different barrel brands, but both are pistols.

With this one, you'll be providing the bolt carrier group as well as the charging handle, but overall this is one of the best .300 blackout pistol uppers out there. Instead of swapping barrels, many of the Blackout-curious types will just build an entire upper dedicated to the 300 BLK and switch out the whole upstairs, sights and all. In my case, I was not excited about the DPMS AR 15 as a .223 in the first place, and didn't mind making a dedicated Blackout gun.

Plus, if your luck holds, you will have nothing more the cost of a barrel which is considerably less than an entire upper. And there is that in-between option where bolt and charging handle jump back and forth between calibers. The whole package also weighs in at only 2.2 pounds without the bolt carrier group and the charging handle. In fact, that's just about the only downside about this upper receiver group is that you have to pay extra for the bolt carrier group and the charging handle, which bumps up the price by about $220. If you just want something that works right out of the box, buy a complete upper receiver that includes a bolt-carrier group and charging handle (like one of the ones you'll see in a moment).

I believe honorable mention is deserved for the particular round and brand I'm employing. And compared to comparable high end .308 or 6.5 hunting rounds, at $17 bucks a 20 round box, buying it in 200 round cases, free shipping, it is big money saver. We ain't no wealthy hobby farmers, this is our life, we live as a farming family. This upper receiver is built from the bottom up to be simple to operate. This is a pre-assembled kit ready for installation on your lower receiver.

However, one drawback is that this doesn't come with a bolt carrier group or charging handle. However, this upper should be compatible with those from your current AR-15. Overall, the PSA 8.5" .300 Blackout Upper Receiver is a solid choice for compact use. You can mount it on both a pistol lower or a regular rifle lower. Furthermore, it comes with a durable aluminum build anodized finish for excellent rust resistance.

Finally, the barrel itself is designed to handle supersonic rounds with the utmost precision. News people Radial pistol uppers are good to go for what they are designed to do. The only down side would be the barrels are 4140 so I would guess they won't hold up to high round counts.

But at their price point I can buy a complete upper for the cost of a barrel from other name brands. I've found two options that I really like that come without barrels. These are high-end uppers that are designed for builders who really want to tweak their builds. The end user will have to provide a barrel and gas system to the upper receiver to complete it. It's a Smith and Wesson product, what could really go wrong?

This is as traditional an upper receiver as you'll get in the modern world. This is for a full-sized carbine and comes outfitted with a 16-inch barrel with a 1-7.5 inch twist, and a threaded muzzle. Included is the Yankee Hill Phantom flash suppressor, which is a great touch. The intermediate barrel length keeps the gun light and handy, but offers somewhat more accuracy than the shorter options.

The assembly has a cerakote coating to keep it in good condition, so it's suitable for shooters who will put their weapon to heavy use. The downside to this model is the price, which is much higher than that of many other options. That makes this a great choice for expert shooters who are willing to pay a premium to get top quality, but new or occasional shooters are unlikely to get their money's worth out of this one. The 300 AAC Blackout is a great cartridge, but most weapons will need a new receiver before they can fire it.

The easiest way to do the modification is to buy the best 300 blackout upper that is available and to slot it into your weapon. It's important to pick a well made upper to make sure the gun stays reliable, but the price is also important because the best can cost as much as a new gun. We've put together ten of the best options ranked based on those traits to make your search for a new upper easier. As well as being in the best designed .300 Blackout AR-15 uppers category it gives excellent features. It has an Enhanced full-automatic rated bolt carrier group and the famed Radian Raptor-SD ambidextrous charging handle.

The gun has a monolithic upper; it adds rigidity and keeps the upper and handguard as one unit. The benefits of this are many, but the most noticeable is the continuity of rail surface. An optic placed anywhere on the rail will be centered on the receiver.

It has a non-reciprocating charging handle on the left side of the gun. PSA has plans to build an ambidextrous version of the upper as well for those who are either left-handed or simply want the ambi option. There is no rule that says you cannot run both subsonic and supersonic ammo in the same mag. So imagine whitetail deer hunting in thick brush with the first round or two being subsonic and the rest being supersonic. If you want an upper receiver group that works right out of the box, buy a complete upper with bolt-carrier group and charging handle. From Brownells, you can get it with either an 8.7" or 14.5" 416R stainless steel barrel that guarantees Sub-MOA accuracy with Black Hills Match Grade ammo.