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.
The BKF AR15 M4 MOD-1 Rail M-LOK series provides an alternative aesthetically progressive design that is lightweight with our 7075-T6 Steel barrel nut and attach method. The innovative attachment of the rail and the barrel nut provides a solid lockup, a seamless, strong joint that requires no timed alignment to the barrel nut itself. All BKF M4 MOD-1 rails (and receivers for that matter) are designed with pocketed cutouts to further minimize weight. In addition, BKF M4 MOD-1 rails offer QD mounting at the rear 3,6 and 9 O’clock of the handguard.
Includes:
- BKF M4 Dry Film LubeAssembled Upper Receiver w/ T-Marks
- BKF AR15 MOD-1 15″ M-LOK Handguard
- BKF AR15 18″ .223 Wylde Rifle Length Nitrided 416-R SPR Barrel
- .750 Low Profile Gas Block and Rifle Length Gas Tube
- Product comes assembled
- No BCG or Charging Handle
BKF M4 Assembled Upper Features:
- M4 Feedramps
- 7075-T6 aluminum
- .250 takedown pin holes
- Laser engraved T-marks
- Type 3 Hard Coat Anodizing
- Made in the USA
- Forward assist and dust cover installed
- Made from U.S.A. sourced 6061 Extrusion
- U.S.A. sourced 7075-T6 Steel barrel nut as standard
- M-LOK mounting solution
- Mil-Spec hardcoat black anodized (Type III, Class 2)
- Free floating design
- QD mounts on rear 3,6 and 9 o’clock positions
- 1.3” Internal Diameter
- 15” Rail with Aluminum nut and hardware (weight 10oz)
BKF AR15 18″ .223 Wylde Rifle Length Nitrided 416-R SPR Barrel Features:
This .223 Wylde chambered 18 inch barrel is machined from 416 Stainless Steel with a QPQ corrosion resistant finish.
Additional Info
Length – 18″
Material – 416R Stainless Steel
Profile – SPR
Finish – QPQ Nitride
Gas System Length – Rifle
Gas Block Journal – .750″
Twist Rate – 1:8 inches
Muzzle – 1/2×28 Threaded
Weight – 40oz
Other Info – HP and MPI Tested
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-M4M0-18-223-SPR-15
Philip Lindeman (verified owner) –
So far I am loving this upper. Fits perfectly with my accessories and lower. Shoots straight and stays pretty cool when fired repeatedly. I am glad I purchased this one.
Philip L. (verified owner) –
Love it… works great with my lower assembly and my 22 Conversion Kit. I am super happy and will be back for more!
Maximo Martinez (verified owner) –
SURPRISINGLY disappointed. This is the third upper I have bought from BKF, but I was surprised to see a timing issue that could’ve easily been prevented. The handguard, barrel, and upper receiver are not timed well. The barrel/gas system are rubbing against the handguard in an unacceptable manner. I have to turn the handguard in order to keep it from rubbing against the barrel. I haven’t fired it yet, because I specifically wanted a free floating barrel and I hope BKF will make this right.
Ray S. (verified owner) –
Looks good, I am concerned with the gas tube. Looks very close to the inside of the hand guard. I haven’t mounted it to a lower yet. Will update when I do.