16" 300 BLACKOUT Parkerized Heavy Barrel AR15 Upper Assembly with 15" Rail and A2 Flash Hider
The 300 AAC Blackout was designed to achieve energies like the 7.62x39 Soviet in an AR16 while using standard AR15 magazines at their full capacity. The 7.62 Soviet's cartridge taper prevented reliable feeding in AR magazines and created wear on the bolt. From the 14.5in barrel of the AR15, the 556 round has an effective point target range of 500 yards. The bullet has significant drop, drift, and energy loss at that distance. From a 16in barrel, a 125gr 300 BLK round has a lower velocity and similar bullet drop and drift at shorter distances. However, it has the same amount of energy at 700 yards that the 556 has at 500 yards. In terms of hit probability, the Blackout has an effective range of 450 yards. From a 9in barrel, the 125 gr BLK round has the same muzzle energy as the 556 from a AR15, and 5 percent more energy at 440 yards. In comparison with 7.62×39mm rounds, 300 BLK rounds with varying loads have a better ballistics and more energy out of similar length barrels.
- 16" 300 BLACKOUT 4150 Chrome Moly Parkerized Heavy Contour Barrel with 1x8 Twist and 5/8x24 Threads
- Mil-Spec Upper Receiver forged from 7075 T6 aluminum with forward assist and dust cover assembly installed. Hard coat anodized MIL-STD 8625 Type 3 Class 2
- 15" Narrow Profile Free Float Rail machined from 6061 T6 aluminum Very comfortable and very light weight. Your choice of M-LOK or KEYMOD attachment points along the entire length at 3, 6, and 9 positions. Hard coat anodized MIL-STD 8625 Type 3 Class 2
- 0.750" Low Profile Gas Block
- Pistol Length Gas System
- Mil-Spec A2 Flash Hider with crush washer
This upper assembly will fit all standard AR15 lower receivers.
This item is "Firearm Parts", not a complete firearm (no serialized components). It will be shipped directly to you with no FFL transfer required.
You are responsible for knowing federal, state and local laws applicable to this item. AR15Parts.com reserves the right to not ship to addresses where it may not be legal to own this item.
ReviewsDan GGreat price...shipped fast...well packaged and arrived in perfect condition. Will definitely do business with this company again!!!David Zopf
Impressed both by 300 Blk Upper and Cust Svc.The upper is all I could have expected and well worth the cost. Also, it was shipped quickly and Arrived fast. On another order, I was sent the wrong part and the sent the correct one out quickly and I couldn’t be happier.James
Fast shipping and great upperSeems to be a very solid and well put together upper. No dings or scratches and looks greatRalph Aguilar
Great service!!Great service! Received exactly what was shown and very fast delivery!!! Thank you!!Bailee Postelle
300 blackout upperHaven’t shot yet but package was good and showed up fastDale
Fast shipping, solid product.So far I’m very impressed with this upper. Seems to be a very solid and well put together upper. No dings or scratches and looks great. I have yet to shoot it so I don’t know about it’s accuracy. If you’re into building ar’s, for the price this is a no brainer.
300 blackout upperFit perfectly on Bushmaster lowerJason Maples
AWESOMEbest customer service out there. i received my order fast and product look gooddouglas eddinger
BADASS !!!!This is my first 300 blackout build. I looked at just about every company that makes 300 blackout uppers and decided to go with this one. It only took about 3 business days to get to me. The fit, finish and overall appearance is pretty awesome. Can't wait to try it out on some pigs. Thank you AR15part.
300 blackoutArrived quickly, as ordered.
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DetailsCurrent Stock: 534SKU: UA30B16PA08HC24P_15ML00_A2UPC:Availability: Usually Ships in 24 HoursOld SKU: 16300BOCM1x8EXRL