8.5" 300 BLACKOUT Parkerized Heavy Barrel AR15 Upper Assembly with 7" 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.
- 8.5" 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
- 7" 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.
AR Upper/8.5 300 BlackoutCarl Blas
Good productQuality product and cost, shipping was very good.Philip Mancuso
300 BLK PISTOL UPPERTook this upper to the range today and fired 200 rounds through it with absolutely no issues.All rounds were 230 gr. cast and coated bullets.Accuracy was excellent. 8.5” length barrel with 7” hand guard allows for suppressor mounting This upper fit perfectly on a Aero Precision lower.Could not be happier with this upper!Rick Fox
8.5" 300 Blackout Pistol UpperIn a build right now. Product that was ordered exceeds my expectation.Ryan
Great upper for cansThis upper seems really solid for the little money asked for it. The threads were precise for suppressor alignment and it ran flawlessly suppressed. Will buy more for future builds!
Good lookingI purchased the above upper to complete a build. It appears to be high quality and very well made. It mated well with the lower and should function as good as it looks.D.
Nice qualityFast service and nice quality
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DetailsCurrent Stock: 96SKU: UA30B85PA08HC24P_07ML00_A2UPC:Availability: Usually Ships in 24 HoursOld SKU: 85300CMU1x7MLR