Description
New in 2026 is our Patrol Series featuring the all new BKF Free Float Quad Rail. Making this the perfect tool for patrol duty use. 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
- 18″ 5.56 SPR Rifle Length AR 15 Barrel w/ Ops 12, (Modern Series)
- BKF Carine Length Gas Tube
- BKF A2 Flash Hider
- BKF 13″ Free Float Quad Rail
- Product comes assembled
- No BCG or Charging Handle
Standard Upper Features:
- M4 Feedramps
- .250 takedown pin holes
- Laser engraved T-marks
- Upper is Assembled
Barrel Features:
This 5.56 chambered 18 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.
This barrel features a longer .750” profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.
Additional Info
| Length | 18″ |
|---|---|
| Material | 4150 Chrome Moly Vanadium |
| Profile | SPR |
| Finish | QPQ Corrosion Resistant |
| Gas System Length | Rifle |
| Gas Block Journal | .750″ |
| Twist Rate | 1:7 inches |
| Muzzle | 1/2×28 Threaded |
| Weight | 41oz |
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-CUR-18-556-FF-13-QUAD-A2FH
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