BKF AR15 8.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim Hybrid M-LOK Handguard (Ballistic Advantage)

(2 customer reviews)

$329.99 $229.99

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This product is 100% Made in the USA! Our gas tubes, gas blocks and even roll pins are all proudly manufactured in the US.


  • BKF Dry Film Lubed Assembled Upper Receiver w/ T-Marks
  • Parallax Tactical 7.25″ Slim Hybrid Profile M-LOK Handguard
  • Ballistic Advantage 8.5″ 300 BLK Pistol DRP Modern QPQ corrosion resistant Barrel 1/7 Twist
  • Low Profile Gas Block and Pistol Length Gas Tube
  • Product comes assembled
  • No BCG or Charging Handle

Standard Upper Features:

  • M4 Feedramps
  • .250 takedown pin holes
  • Laser engraved T-marks
  • Upper is Assembled

Parallax Tactical 7.25″ Slim Hybrid M-LOK

  • Super Slim Profile (1.360″) inside diameter
  • QD at rear 3 and 9 o’clock positions (8oz)
  • M-LOK Compatible
  • Made in the USA!!!

Ballistic Advantage 8.5″ .300 Blackout Pistol Length AR 15 Barrel, Modern Series Features:

This .300 Blackout chambered 8.5 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

Additional Info

Length – 8.5″

Material – 4150 Chrome Moly Vanadium

Profile – DRP

Finish – QPQ Corrosion Resistant

Gas System Length – Pistol

Gas Block Journal – .750″

Twist Rate – 1:7 inches

Muzzle – 5/8″x24 Threaded

Weight – 19oz

All NFA/ATF Rules Apply
You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when permanently attaching a muzzle device extending the length to 16 inches.

Additional information

Weight 3 lbs
Dimensions 20 × 4 × 4 in

2 reviews for BKF AR15 8.5″ 300 BLK Pistol length 1/7 Twist Barrel w/ 7.25″ Slim Hybrid M-LOK Handguard (Ballistic Advantage)

  1. Steve M. (verified owner)

    Order came in on time and in good shape. Put a pisiol lower on it, and the gun ran flawlessly. Before receiving my lower, I had a question. I emailed B King, and received an answer the very next day. I will be doing business with B King again.

  2. Adam G. (verified owner)

    Excellent value! Quality parts!

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