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300 Blackout Upper (16" Barrel, Carbine-Length, Quad Rail) AR 15 Complete Rifle Upper
$499.95 $389.95 (You save $110.00)
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Free Shipping on all orders $250+


SKU: UA300CHB1618(P).750-(10)FFQ

For the AR builder looking for the perfect combo of a USGI-like Quad Rail Handguard and the new 300 Blackout chamber, you've found your top choice. Our Complete 300 Blackout Rifle Upper features a quality heavy barrel constructed of 4150 Chromoly Steel and carbine-length quad Picatinny handguard, housing a low-profile, carbine-length gas system. This unique setup allows you to easily switch from supersonic to subsonic loads without the need to swap gas systems or barrels. The simple but proven quad rail offers plenty of real estate in all cardinal directions to attach any accessory you want.

Mil-Spec Built, 1-MOA Accuracy on a Budget

Even though our 300 Blackout Upper is affordable, it isn't cheap. The whole thing's built with mil-spec ratings and features, including a gold-standard 4150 Chromoly barrel that promises 1 MOA of accuracy at 100 yards, M4 feed ramps, M4 Flat Top Upper Receiver, A2 Birdcage flash hider, and of course, a near replica of the military's tried and true KAC RAS Quad Rail system. Our Quad Rail is even more improved, featuring a direct connection between the rail and upper receiver for a fraction of the cost. Everything is fabricated in the good ole' USA to ISO 9002 quality control standards.

300 Blackout Rifle Barrel Features:

  • 300 AAC Blackout Chamber
  • 16" with Parkerized Finish
  • 4150 Chromoly Steel
  • Heavy Profile
  • 1:8 Twist Rate
  • 5/8 x 24 Thread Pitch
  • A2 Birdcage Flash Suppressor

300 Blackout Receiver Features:

  • USGI-type Quad Rail Handguard
  • Carbine-Length Gas System (0.093 Hole)
  • Low Profile Gas Block (0.750)
  • M4 Flat Top Upper
  • M4 Feed Ramps
  • Carbine Gas Tube
  • Charging Handle
  • Chrome-lined BCG

Ships Direct, No FFL Transfer Required!

Even though our Complete 300 Blackout Upper comes ready to fire out of the box, you need absolutely no FFL transfer paperwork, signatures, or waiting in line at your local gun store's counter while that PICS check goes through. Just grab it from your front door step, slap it on your 80 lower build or any other built AR lower, and you're set!

300 Blackout Upper (16" Barrel, Carbine-Length, Quad Rail) AR 15 Complete Rifle Upper

$499.95 $389.95 (You save $110.00)
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Free Shipping on all orders $250+


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