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Complete AR-15 Pistol Upper Assembly – 300 Blackout Pistol Upper (7.5″ Barrel & 7″ Free Floating Quad Rail)

$499.95 $429.95 (You Save $70.00)

Complete AR-15 Pistol Upper Assembly - 300 Blackout Pistol Upper (7.5" Barrel & 7" Free Floating Quad Rail)

In stock

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Free Shipping on all orders $325+!

SKU: UA300PHB7.517(P)-(7)FFQ

Description

For the AR builder who wants the most accurate, compact, functional, and lightweight pistol .300 AAC blackout upper assembly, look no further. Our 7.5″ heavy pistol upper is chambered in .300 BLK with a free-float quad rail. It features an all mil-spec construction with classic Picatinny rails that allow for plenty of attachments. With an included M16 bolt carrier group and standard charging handle, this pistol upper ships ready to fire, no guesswork and no extra steps needed. A 1:8 twist rate and pistol gas system offers the perfect balance of stabilizing lighter supersonic 300 Blackout loads, without sacrificing the ability to reliably shoot heavy subsonic loads.

Mil-Spec Quality and Accuracy

Our .300 blackout pistol upper assembly features a mil-spec 4150 Chromoly Vanadium barrel with M4 feed ramps for guaranteed feeding and reliability. Because our barrels do not use chrome lining, you’ll enjoy superior accuracy, too. We heat-treat every barrel to a hardness rating of RC 28 to 32, creating stronger rifling that’s more resistant to wear than any other barrel on the market. This negates the need for chrome lining entirely, while still providing superior durability. This upper assembly also features a standard flat top M4 receiver, housing a quality, mil-spec charging handle and chrome-lined bolt carrier group. Everything is manufactured to ISO 9002 quality control standards, ensuring the highest quality Upper possible.

300 Blackout Pistol Barrel Features:

  • .300 AAC Blackout
  • 7.5″, heavy, Parkerized
  • 4150 CMV (mil-spec)
  • 1:8 twist rate
  • 5/8 x 24 thread pitch
  • A2 birdcage flash suppressor

300 Blackout Receiver Features:

  • 7″ free-float quad rail
  • Pistol-length gas system (0.076 hole)
  • Low profile gas block (0.750)
  • M4 flat top upper
  • M4 feed ramps
  • Pistol gas tube
  • Charging handle
  • Chrome-lined M16 BCG

Ships Straight to Your House!

Even though this 300 Blackout Pistol Upper ships ready to fire out of the box, there is absolutely no paperwork required! You do not need to deal with any FFL transfers and fees, and there’s no waiting at your local gun store while that PICS check takes forever. The only part of your AR pistol that’s considered a firearm is the stripped lower. This upper is legally not a firearm, so we can ship it directly to your front door.

No FFL required Made in the USA Lifetime Warranty

 

Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or “assault weapons” (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.  

80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

Complete AR-15 Pistol Upper Assembly – 300 Blackout Pistol Upper (7.5″ Barrel & 7″ Free Floating Quad Rail)

$499.95 $429.95 (You Save $70.00)

In stock

Save For Later
Save For Later

Free Shipping on all orders $325+!

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