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

(4 customer reviews)


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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 Slim Profile M-LOK Handguard
  • Ballistic Advantage 8.5″ 300 BLK Pistol DRP Modern QPQ corrosion resistant Barrel
  • 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 M-LOK

  • Super Slim Profile (1.360″) inside diameter
  • Simple Lightweight design (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 3.5 lbs
Dimensions 28 × 4 × 4 in

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

  1. Cheng X. (verified owner)

    Ship the wrong part but fixed it right away. good costumer service

  2. robert (verified owner)

    Very happy with the upper. Took it out this morning and ran flawlessly. Did a quick site and I see this as being my new favorite to get uppers from.

  3. Erik (verified owner)

    Dropped right onto my pistol lower. Everything cycles as it should. Will be fire testing this weekend.

  4. Chris Maguire (verified owner)

    From ordering to shipping to the function of the equipment, couldn’t be happier with my purchase.

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