BKF M4 MOD-0 12.5″ 1/7 Twist 5.56 Nato SBA3 FFSSR Pistol – Forest Shadowcam


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New for 2020 is our BKF m4 mod-0 buffer tube assembly’s that is part of our new premium series. The premium series will offer a vast number of bkf components that have been made with the ar builder in mind. Not only does the premium series offer extremely high quality products, but it also offers very competitive pricing. They are available in standard, intermediate or extra power configurations.  These are manufactured for heavy duty use in mind. This buffer tube assembly is the perfect starting place for any high quality build.

This Intermediate Power H1 (3.7oz) with Sprinco White/Red Combo is standard in all carbine length gas system 5.56mm pistol weapon systems ranging from 10.5″ to 14.5″. 

BKF M4 Mod-0 12.5″ 1/7 Twist 5.56 Nato SBA3 Pistol Features: 

  • Manufacturer: B. King’s Firearms
  • Model: M4 Mod-0
  • Caliber: 5.56 Nato (Marked Multi)
  • Length: 12.5″


  • BKF M4 Mod-0 11.5″ Builder Set
  • BKF AR15 Enhanced M4 MOD-0 Lower Parts Kit (LPK) W/ Billet Trigger Guard
  • BKF M4 MOD-0 Intermediate Power (H1 3.7oz and Sprinco White/Red) Carbine Buffer Assembly – 7075
  • BKF AR15 Billet Charging Handle
  • BKF M16 BCG 9310 MPI/HPT Billet Extractor
  • BKF 12.5″ 5.56 Nato Carbine Length 4150 CMV 1/7 Twist Nitride Barrel W/ Pinned Gas Block
  • BKF Pinned Low Profile .750 Gas Block and Carbine Length Nitride Gas Tube
  • BKF A2 1/2×28 Flash Hider
  • SB Tactical SBA3 Pistol Brace
  • Magpul MOE Pistol Grip
  • Cerakoted by Weapon Works

B. Kings Firearms barrels are manufactured by a Top Tier Barrel Manufacturer to our specifications. Our 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.

Additional information

Weight 6 lbs
Dimensions 38 × 10 × 4 in


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