If you are buying a complete upper receiver, you should take a serious look at the length, rifling, profile, and twist rate of the barrel. Longer barrels are good for long range hunting, whereas shorter ones are for tactical and competitive uses. Similarly, the weight and velocity of the ammunition must also be taken into consideration. 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. One of the 416's most notable design differences is the short stroke piston system that has led to a reputation for amazing reliability.
These kits will include the upper receiver, handguard, gas block, bolt carrier, and piston system, charging handle, all lower receiver small parts, buffer and buffer tube assembly, and stock. One of the 416's most notable design differences is the short stroke piston system that has led to a reputation for amazing reliability. This is another very durable, feature-packed, and inexpensive complete upper receiver from PSA. It has been forged from 7075 T6 aluminum and features a pistol length gas system to handle both super and subsonic ammunition, also coupled with a low profile gas block. This is a complete upper receiver which has been forged using 7075 T6 aluminum for durability.
It is an M4 type receiver which includes a forward assist, BCG, handguard, and barrel. The BCG has been made from shot-peened 158 carpenter steel and features a full auto profile for rugged use. It also includes a nitride coating for resistance to wear and tear. It has a low profile pistol-length gas block which is ideal for 300 AAC rounds. 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. 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. Build quality on the PSA pistol is extremely well-done. There are no gaps between upper and lower receivers. The 8.5″ barrel is 4150V Chrome Moly Vanadium Steel. 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 .
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. People talk down about Radial like they are junk. 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. 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. |The integrally suppressed upper receiver from Whitt Machine and Tool is the most affordable integral upper on the market today. Chambered in 300 Blackout, it meets the 16" barrel requirement to avoid an additional SBR tax stamp. The upper is complete with a charging handle, Nikel Boron BCG, adjustable gas block, and hex handguard.
The PSA 16″ Pistol-Length 300AAC Blackout 1/8 Nitride 15″ is a complete upper receiver that's forged using top quality 7075-T6 aircraft aluminum for enhanced durability. This is an M4-style upper receiver which will come with a forward assist, BCG, barrel, and a handguard. The EPC-9 lineup is perfect for your next 9mm or 40S&W AR build. Built from the ground up to meet the extreme demands of pistol caliber blowback ARs, the EPC-9 is precision machined to the same high standards you have come to expect from Aero Precision. The foundation of this product line is our forged EPC-9 receiver set, accepting standard frame GLOCK magazines and available with a last round bolt hold open mechanism integrated into the upper receiver. A 300 Blackout rifle requires a specific upper receiver which can be mounted on an AR-15 lower receiver while using the same BCG.
A complete upper receiver is basically comprised of the BCG, chamber, ejection port, handguard, barrel, and sights. 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. 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). The extra feature with this complete upper receiver is the Magpul backup iron sights. These sights can be folded down when not needed and can also be removed with ease. The sights can be used in conjunction with optic scopes for better performance. The action of an upper receiver includes the chamber/breech and the bolt carrier group.
It is responsible for loading, ejection, and firing of the cartridge. A 300 Blackout rifle uses the bolt carrier group of a 5.56 AR but it has a differently designed chamber specific to the shape of the cartridge. Loading otherwise can lead to serious or even fatal malfunctions. 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.
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. Its billet upper receiver and M-Lok handguard are incredibly high quality and look fantastic. 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.
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. 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. One of the nice features of the AR-15 is the ability to alter the upper receiver to fit a wide range of ammunition. The design of the 300 Blackout cartridge allows shooting it from AR-15 rifles. Now, as it does not have the same reliability issues as other cartridges, upgrading the AR-15 to accommodate the 300 Blackout could also upgrade your AR-15 game.
300 AAC Blackout The 300 Blackout was designed by Remington/AAC to create a reliable, compact.30 caliber round for the AR platform that uses a standard bolt and magazine. 300 Blackout is optimized for suppressed fire with heavy bullet subsonic loads but can also be used with supersonic ammunition when extra range is needed. 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. 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. It should go without saying that a 30 caliber subsonic suppressed round with a 200 meter range should have endless uses. But let's put a finer point on that protection thing. A bolt cycling is noisy but only within a very limited sound radius. Add snow or thick brush or trees and the noise of a buffer spring boinging and bolt clanking will not travel far. And the thump of bullet impact is evidence that it's too late to do anything about it.
Unfortunately, the 30 caliber bullet leaving the muzzle under the speed of sound drops like a mountain pass after a hundred yards, and like a double-black diamond ski slope at 200 yards. Beyond that it's ballistics curve would be a boat anchor. Relatively speaking, the 300 Blackout is better suited to shorter barreled guns; in fact, it was designed for exactly this task.
With most loads, a 9-inch barrel is enough bore for a complete powder burn. That said, like every cartridge, it gains velocity out of longer barrels to a certain point. Don't be fooled, a 16-inch carbine in Blackout will outperform a 9-inch Blackout pistol. Dependent on load, firearm and environment, expect anywhere from a 250 fps to 350 fps difference between the lengths. However, if you want to mount it over a regular rifle-sized lower, you'll have to overcome certain legal implications.
The barrel has a flash can threaded over the muzzle. Plus, the upper features a full-length rail from the receiver to the tip of the handguard. The M-Lok handguard can also be used to mount slings and other compatible accessories. The muzzle of the barrel includes a fluted cash can which can be easily removed to reveal ⅝-24 inch threads for mounting a muzzle brake or suppressor. The lower parts kit includes a fixed stock, pistol grip, buffer tube, and all other components to assemble the rifle. Other than these, an upper receiver features the handguard.
There are many different kinds of handguards available for the AR platform. Handguards can have rails on them to mount extra accessories and scopes. 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. Really couldn't tell the difference in recoil from the 5.56 upper.
I also got the other upper from PSA in as well with the Strikefire red dot. I used the Strikefire it on both uppers and I really didn't need to change zero at at. I've got enough 5.56 builds and have an extra lower that I've decided to build a 300. I thought the only difference from my 5.56 builds would be the upper barrel.
However I'm finding that many of the uppers are short barrel. Also finding pistol length gas systems a lot and when browse complete assemblies and such. In recent years, 300 ACC Blackout has become one of the most popular calibers for AR platform rifles.
Because regularly swapping out barrels is a pain, most people to choose to buy a 300 Blackout upper. 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. Your upper receiver is literally half of the firearm and includes the barrel. For this reason, it needs to be as durable as possible. The best materials to go with for an upper receiver for your AR-15 must be 7075-T6 aluminum. This is an aircraft-grade aluminum that is durable and also lightweight.
