User Ratings
No ratings yet
Be the first to review this product
KAK 8.5" 9X39 1:7 AR15 Barrel- Stainless\n- Chamber: 9x39\n- Length: 8.5"\n- Gas system: Pistol Length\n- Gas Block Size: .750\n- Threads: 5/8-24\n- Finish: Matte Blasted Grey\n- Twist: 1:7\n- Material: 416R Stainless\n- Extension: M4 Ramps\n- Marked for Caliber and Twist\n- Weight: 18.24 OZ\n- Gas Block Dimples\n- Fully Made In House From KAK Industry Produced Blanks\nAll Barrels Are Air Gauge Inspected for Correct Bore Size & Tolerances, completed Barrels are Inspected for Proper Headspace using Calibrated Gauging.\nDESIGNED TO BE USED WITH FACTORY WOLF 278 GRAIN SUBSONIC AMMO; These barrels are designed to be run suppressed. Attempting to run them unsuppressed could lead to issues outside of KAK's control in which we hold no liability.
Specifications
- Manufacturer:
- Kak Industry
- Category:
- barrel
- Platforms:
- AR-15
- Weight:
- 18.24 oz (1.14 lbs)
- Length:
- 8.5"
- MPN:
- KAK-8.5-9X39-1-7-SS-BARREL
- Required Component:
- Yes
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Have one to sell?
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
No Price History Available
Check back later for pricing trends
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertSimilar Products
Daniel Defense 16in 5.56mm NATO Carbine Length M4 Profile Barrel 07-075-08174-018
Daniel Defense
$289.99
Faxon Duty Series AR-15 Barrel 5.56x45mm NATO 10.5 Pencil Contour 1:8 Twist Black Nitride
Faxon Firearms
$132.40
14.5-inch 5.56 Government Profile Midlength AR 15 Barrel, Modern Series (OEM)
Ballistic Advantage
$170.00
Criterion Barrels Core AR-15 Barrel 223 Wylde 14.5" Mid-Length Chrome-Lined 1:8" Twist Black
Criterion Barrels Inc
$313.49
Criterion Barrels CORE 223 Wylde Carbine AR-15 Barrel 11.5in
Criterion Barrels Inc
$313.49
LMT Defense Chrome Lined Mid-Length Twist Barrel 5.56x45mm/.22 Cal 16" Fits LMT Defense L7S1A, Black
LMT
$472.99
Daniel Defense AR-15 5.56 NATO Barrel 11.5in Government Contour 1:7 Twist Phosphate
Daniel Defense
$296.99
Geissele CHF 5.56 NATO 14.5in 1:7 1/2x28 Chrome-Lined Taper Profile Barrel
Geissele Automatics
$287.00
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
5.56 NATO, .223 Remington, and .223 Wylde: Chamber Differences Explained
A technical breakdown of the differences between 5.56 NATO, .223 Remington, and .223 Wylde chambers — what each accepts safely, and how to choose for your build.
5 min read
Guide
The AK Platform: Core Design, Strengths, and Builder Tradeoffs
A practical AK overview covering operating system basics, parts ecosystem realities, and where the AK platform shines compared to AR-pattern rifles.
8 min read
Guide
.308 Win vs. 6.5 Creedmoor for AR-10 Builds
A technical comparison of .308 Winchester and 6.5 Creedmoor for AR-10 platform builds — covering ballistics, recoil, parts availability, and which cartridge fits which use case.
5 min read