This AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. It is built around a 16 inch, 4150 chrome moly barrel that is chambered in 300 Blackout and has a black nitride finish. The upper receiver is a forged M4 flat top upper, allowing you to easily attach rifle scopes and red dot sights to the picatinny rail. This upper features our most popular rail, our seven-sided second generation keymod.
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. The rail also features a full-length picatinny top rail that sits flush with the upper receiver and has anti-rotation tabs to keep it locked in place. The most important part to consider when building any AR15 rifle is the complete upper receiver. The upper receiver assembly contains all of the essential parts of the rifle including the barrel, bolt carrier and firing pin, among others. 300 Blackout Uppers Drop in ready 300 blackout complete upper receivers available today.
The next step on your AR is to upgrade to a 300 Blackout upper, Ghost Uppers from ghost firearms. Rock River Arms, Inc. offers a complete line of American made, custom built AR15 style rifles. It is chambered in .300 Blackout and machined with .300 Blackout feed ramps in the barrel extension. Bushmaster designs and manufactures premium upper receivers for the AR rifle / pistol platforms.
These durable uppers are the perfect item to build your AR firearm around. Bushmaster has you covered on your next AR build or upgrading project chambered in 5.56mm, .300 Blackout, or 7.62mm. Choose from stripped uppers, complete uppers, and complete uppers with barrel and other components ready to go. 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. 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. This MK109 complete upper receiver assembly is compatible with any mil-spec lower receiver, converting your firearm to a long-stroke gas piston action. It features a BCG complete with a steel operating rod and piston, similar in principle to an AK. 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.
Rankin Industries 7.5 inch 300 Blackout Upper without BCG. This is an upper that we have assembled with 7075 Upper Receiver, standard charging handle, Anderson Manufacturing 7.5″ Barrel that is 4150 Chrome Moly Vanadium with Nitride Finish. This is a complete upper receiver minus the Bolt Carrier Group. 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. 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. If your upper receiver has a Picatinny rail on the top, it will be very easy for you to add sights, lasers, or scopes. Many upper receivers do not come with sights installed including complete uppers.
So you will need to buy these separately and then add them to your rail. 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. 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. 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. 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. 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 foundation of all good ARs is built upon a dependable upper receiver. CBC upper receivers offer best-in-class quality while providing you years of dependable service. Boasting a MIL-SPEC type III hard coat anodized finish and machined from 7075-T6 forged aluminum, this M4 flat-top receiver delivers a lifetime of superior function. You want your AR built upon a solid platform - this receiver gives you the confidence that your AR-15 will function when it counts most.
The BCM MK2 upper receiver features a 9" barrel chambered in .300 Blackout with a 1/7 twist rate. Fully Manganese Phosphate coated, this barrel is machined from USGI Mil-Spec CMV machine gun barrel steel with a hard chromed bore and chamber. One of the core parts of building an AR-15 is the upper receiver. A quality upper receiver is crucial for the optics platform and barrel mating.
The Armory carries a selection of AR-15 upper receivers for sale ranging from A2 Carry Handle uppers to Flat Top Uppers. This upper receiver kit does not feature a bolt carrier group or a charging handle. However, it should be compatible with those from your existing AR-15.
You may also purchase a separate set to turn this upper receiver kit into a ready-to-convert assembly, which can be snapped on and off your lower in a matter of seconds. 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). 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 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 just got back from my indoor rang after firing retail and ammo I reloaded using Winchester 768 powder trickled to 15.5 grains and 150 gr. The American Eagle and reload ammo preformed indistinguishable and excellent.
With a 3X scope shooting benched @ 25 yards the groupings were on top of each other cutting a big dot on the target. I gave it a 5 star because of the price and functionality. The hand guard is excellent and aligned perfectly and the upper is light and solid.
I bought this with the BCG and charging handle and the fit is perfect. The black finish doesn't seem as durable as my Sig .223 ($1,200) or DPMS .308 ($950) but still good. I bought a Anderson Lower ($136) and this upper ($349) with BCG and Charging handle for less than $500 there is no decision for me.
I ordered the 16″ blackout with 13″ CBC Gen 2 rail, it arrived withing 10 business days of ordering. Fit an finish is really good; the receiver itself It is indistinguishable from my BCM upper aside from the BCM logo. The handrail is light but very solid; I placed a bipod at the end of the rail and didn't notice any flexing. I haven't removed the rail to inspect the barrel nut but everything seems to be aligned and installed correctly.
Finish on the barrel is even; a little glossier than I expected but my other AR's are all parkerized, so I'm used to a very flat finish. On the range, it functioned flawlessly with my DD built lower and LMT bolt carrier group. Using Remington 120gr supper sonic ammo I was able to achieve 1.25 MOA groups. This was shooting prone without a good rest so I'd imagine with a better rest and ammo groups will tighten up even further. When you buy a complete upper, you'll save money and parts and assembly vs purchasing the components separately.
Our complete uppers are not the cheapest on the market, but they deliver unbeatable quality in the price range. We sell direct to the customer, and cut out the middle-men, to deliver the best value in AR-15 upper assemblies. 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.
Lantac USA PDP 300 Blackout Complete Upper Receiver features a 7.5 inch barrel with a pistol length gas system and their enhanced bolt carrier group. To view this site, you must enable JavaScript or upgrade to a JavaScript-capable browser. The Honey Badger is based on a M4 upper and lower receiver that was designed by AAC and features a 6-inch barrel that is surrounded by a free-float handguard and rail. A new reflex suppressor and stock were also developed for the project.
The stock is similar to the HK MP5 in that the two side rails travel in slots machined into the upper receiver. The ATI OMNI HYBRID MAXX 300 Blackout features a fully-patented metal reinforced polymer upper receiver along with a fully-patented metal reinforced polymer lower receiver. The pistol sports a flat top for mounting sights or optics. The threaded barrel allows you to use your favorite muzzle device or suppressor.
The upper receiver is a flat-top type, and the mated handguard features a top Picatinny rail for installing sights and optics and M-LOK mounting points for other rifle accessories. The M4E1 upper receiver is forged out of 7075-T6 and precision CNC-machined to provide a tight and snug fit. It is compatible with all mil-spec AR-15 lowers and features a standard M4 feed ramp, increasing carbine and pistol reliability. This upper assembly is also backed by our BCA limited lifetime warranty. Choose an upper assembly designed by a U.S. company and made in the U.S.A. Choose BCA. 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. 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. I ordered this upper receiver and the bolt/charging handle and was pleasantly surprised that they placed the bolt and charging handle into the upper receiver before they shipped it to me. Everything looks straight and the quality for the priced is excellent.
