7.5" 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.
- 7.5" 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.
7.5" 300 Blackout UpperLeonard Cook
300 blk out
ExcellentExcellent as always.John Waters
300 blackout 7in upperExcellent product arrived in a timely manner (shipped fast with a quick eta not holding the responsible for Usps loosing it and misrouting it a extra week) great quality and will definitely buy from them I. The future!!Mike B
Its like a sore Peter.You cant beat it.
Excellent!!Quick and Easy!! Received within 4 days of ordering. Upper looks and fits Great.Matthew West
ReviewGreat quality product & service..... Received it in a few days! Will definitely do business again
Leave a Review
DetailsCurrent Stock: 42SKU: UA30B75PA08HC24P_07ML00_A2UPC:Availability: Usually Ships in 24 HoursOld SKU: 75300CMU1x7MLRLA2