Description
This product is 100% Made in the USA! Our gas tubes, gas blocks and even roll pins are all proudly manufactured in the US. All Complete uppers are headspaced prior to shipping and test fired.
Includes:
- BKF AR15 Assembled Upper Receiver w/ T-Marks
- BKF AR15 14.5″ 5.56 M4 Profile Carine Length 4150 CMV 1/7 Twist Nitride Barrel W/ FSB, M4 Handguard Cap and Delta Ring Assembly
- BKF Carine Length Gas Tube
- BKF A2 Flash Hider
- Retro A2 Carbine Length Handguard
- Product comes assembled
- No BCG or Charging Handle
Standard Upper Features:
- M4 Feedramps
- .250 takedown pin holes
- Laser engraved T-marks
- Upper is Assembled
This BKF 5.56 chambered 14.5 inch M4 Carbine Length is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. This barrel includes the front sight base (F-Marked) , handguard cap and delta ring assembly.
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 Info
| LENGTH | 14.5″ |
|---|---|
| MATERIAL | 4150 Chrome Moly Vanadium |
| PROFILE | M4 |
| FINISH | QPQ Corrosion Resistant |
| GAS SYSTEM LENGTH | Carbine |
| GAS BLOCK JOURNAL | .750″ |
| TWIST RATE | 1:7 inches |
| MUZZLE | 1/2×28 Threaded |
| WEIGHT | 32oz w/ FSB |
B. Kings Firearms barrels are manufactured by a Top Tier Barrel Manufacturer to our specifications. B. Kings Firearms barrels are made for combat and heavy duty use. We rate all of our Pinned Gas Block models for full auto use. We guarantee 1 MOA or better on all BKF barrels when used with match grade ammunition.
PRODUCT SKU: BKF-14.5-M4-556-FSB-2PC
Ian Schoolcraft (verified owner) –
First time BKF purchase. Very nicely made. Aeroshell still reaked out the box so you know it was built fresh and not rotting on some shelf. There’s a reason they sell out. The fit and finish is fantastic. Great qc and great shipping times. GET EM WHILE THEYRE HOT!
Ian Schoolcraft (verified owner) –
Very happy with my purchase. Upper was made to order. High quality anodizing. Great pricing and some of the best customer service I’ve dealt with. Looking forward to picking up some more parts from b.king
karljohannson (verified owner) –
This is a very nice starting point for building ‘inspired’ clones of an M4 or an early M4A1 (pre-SOCOM barrel upgrade). I added Pin/Weld Service with an extended flash hider. I’m very happy with the price, quality, and service. BKF is the real deal.