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 M16A1 Assembled Upper Receiver
- BKF AR15 20″ Pencil Barrel – 1-7 Twist (Non-Chrome Lined)
- BKF Rifle Length Gas Tube
- BKF A2 Flash Hider
- Teardrop Forward Assist
- A1 Rear Sight Assembly
- Rifle Length A1 Triangle Stock
- Retro 3 Prong Flash Hider
- Product comes assembled
- Standard M16 BCG and Billet Charging Handle
Standard Upper Features:
This A1 upper receiver comes with the standard features of a Mil-Spec upper receiver and is forged from 7075-T6 aluminum with a black hard coat anodized, tough finish. The A1 carry handle is ready for adjustable rear sight. The upper has a shell deflector and forward assist housing and will accept a standard dust cover. The C7 style carry handle allows mounting a scope. This upper has an M4 feed ramp . Use with any Mil-Spec lower receiver.
BKF AR15 20″ 5.56 Pencil Profile Rifle 4150 CMV 1/7 W/ FSB Triangle (NON F-Marked For A2):
This BKF 5.56 chambered 20 inch Pencil Profile Barrel 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 (NON F-Marked) For A2 Uppers , Triangle handguard cap and delta ring assembly. This Triangle handguard cap is used for most retro builds.
Additional Info
| Length | 20″ |
|---|---|
| Material | 4150 Chrome Moly Vanadium |
| Profile | Pencil |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | Rifle |
| Gas Block Journal | .625″ |
| Twist Rate | 1:7 inches |
| Muzzle | 1/2×28 Threaded |
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.
BKF AR15 Complete Lower Receiver Features:
- Pictogram style “SAFE” and “FIRE” markings
- Machined from 7075-T6 forged aircraft grade aluminum
- Caliber marking of “Multi” so it can be used with many different caliber uppers
- Compatible with all standard AR-15 components and magazines
- Bead blasted and hard coat anodized black (Type III, Class 2 )
- Manufactured to MILSPEC on state of the art CNC equipment for consistent quality parts and exacting tolerances
- Save money by building your own AR-15 rifle from the ground up exactly the way you want it configured
- NO LOGO (GHOST)
- 100% USA made
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.
PRODUCT SKU: BKF-M16A1-20-.625-556-FSB












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