7.5" 300 BLACKOUT Parkerized Heavy Barrel AR15 Upper Assembly with 9" M-LOK Rail and Micro Slim Cone Flash Can
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
- 9" M-LOK Narrow Profile Free Float Rail machined from 6061 T6 aluminum Very comfortable and very light weight. M-LOK 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
- Micro Slim Cone Flash Can 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.
General ReviewI have not put together my pistol yet but this upper looks amazing, it feels amazing and will make an amazing pistol when I get it done. I am extremely impressed with everything from your company. I received emails every step of the way. I opted for 2 day delivery for a few dollars more and it was at my door exactly when it was supposed to be. Right now I think that is a big deal considering no one has been keeping up with the delivery times. With all this I will be purchasing from you again in the future.Kyle
ExcellentI had been looking for parts to finish my pistol build when all other resources had dried up I remembered this website found exactly what I wanted in stock and at a reasonable price! It was shipped quickly and arrived faster than I imagined very happy with the product and fit and finish ease of purchaseCalifornia-oppressed
All good so farAccepted a .22 conversion kit with no problems. Cheap 556 ammo has gotten semi-jammed in chamber, but only through manual cycling of the action.
Great partsFit and finish is great. The price was better than the other sites.
Great value, fast shipping!Received this and another upper only a few days after my order was confirmed. Went to test fire and it ran like a sewing machine. Ejected consistently and is a great shooter. The machining is nice, was packaged well. The cone brake is awesome, just put a hand stop out there, lol. Only downside was it didn't like steel cased Tula. I know alot of ARs that don't, but I picked up a BCM Extractor upgrade and that should solve that issue. Will order from again. Have no worries with this outfit!!!Don Boozer
Pistol length upperThis is the second pistol length upper I've purchased. Another great item. Perfect fit and great finish. The cone shaped break should keep muzzle flash under control. As always, quick delivery and secure packaging. No chance of damage.Shane Rushing
Great upperThis thing looks and performs amazingB_G
So Happy! Honest Website!I cant tell you how happy I am to find an honest website that actually has and ships the item they say they have in stock!! Had the item within a week! I'll be buying more from Here!
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DetailsCurrent Stock: 43SKU: UA30B75PA08HC24P_09ML00_SCUPC:Availability: Usually Ships in 24 HoursOld SKU: 75300CMU1x7MLRL