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BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR) - Image 7
  1. BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
  2. BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
  3. BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
  4. BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
  5. BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
  6. BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR)
  7. BKF Mk18 CQBR - 10.3" 5.56 NATO (SBR) - Image 7

BKF Mk18 CQBR – 10.3″ 5.56 NATO (SBR)

Original price was: $1,199.99.

or 4 payments of $240.00 with
ⓘ
Current price is: $959.99.

8 in stock

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SKU: BKF-M4A1-MK18-SBR Categories: , , , , , , , , ,

Description

The CQBR features a 10.3 in (262 mm) length barrel (similar to the Colt Commando short-barreled M16 variants of the past) which makes the weapon significantly more compact, thus making it easier to use in, and around, vehicles and in tight, confined spaces.

Features:

  • Manufacturer: B. King’s Firearms
  • Model: M4A1
  • Caliber: 5.56 Nato
  • Length: 10.3″ Crane Spec Barrel
  • Classification: SBR

Includes:

  • BKF M4A1 Assembled Receiver Set (*New for 2025: M4A1 Carbine markings)
  • BKF Standard Power Buffer Tube Assembly
  • BKF Mil Spec Fire Control Group
  • BKF Mil Spec Charging Handle 556 Black
  • BKF M16 BCG C158 CLP MPI/HPT Billet Extractor – Nitride
  • BKF 10.3″ (Crane Spec) 5.56 Nato Carbine Length 4150 CMV 1/7 Twist CLP Barrel W/ Pinned Font Sight Base (F Marked)
  • BKF Carbine Length Gas Tube
  • BKF Standard A2 Flash Hider 1/2×28
  • BKF Mil Spec CQB Stock and A2 Grip
  • *NOW FEATURING BKF 2-Piece Drop-In Quad Rail (No “Diving Board” / Pic Rail Bridge over Delta Ring)

NEW BKF M4A1 Complete Lower Receiver Features: 

  • “SAFE”, “FIRE” and “AUTO” markings
  • Machined from 7075-T6 forged aircraft grade aluminum
  • M16 Pocket Cut
  • Threaded Rear takedown and bolt catch (Screws included)
  • Bead blasted and hard coat anodized black (Type III, Class 2 )
  • Caliber marking 5.56 MM
  • Compatible with all standard AR-15 components and magazines
  • 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

All NFA/ATF Rules Apply
This firearm requires compliance with NFA/ATF rules regarding SBR. This will require the needed NFA Tax Stamps to be purchased.

Suppressors and SBR’s are legal to own in 42 states and growing. Suppressors can be purchased through an authorized dealer but are regulated by the national firearms act [nfa] branch of the bureau of alcohol tobacco firearms and explosives. This means there are a few extra steps for purchasing a suppressor compared to a regular firearm. The following outlines what you need to legally purchase a suppressor.

Requirements
Be a resident of a state where suppressors are legal
Be at least 21 years of age
Be a united states resident
Be legally allowed to purchase a firearm
Pass an atf background check that usually needs 6 to 9 months to process
Pay a one time tax of $200
Ensure your local chief law enforcement officer gets a copy of your form 4

Materials to purchase a suppressor, you will need to find an authorized dealer in your area. Once you find the suppressor you want, the dealer will assist you in filling out a form 4. This is the form you will send into atf along with the following:

Atf form 4 (duplicate)
Fbi form fd-258s in black ink
$200 check to batfe-nfa
Passport photos
Ate form 5320.23 (if using a trust)

 

    PRODUCT SKU: BKF-M4A1-MK18-SBR

     

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