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BKF M4 MOD-1 Fluted 8-Position Lower Build Kit W/ Combat Control Kit in Nitride Minus FCG (SB Tactical SBA3)

(3 customer reviews)

$149.99

3 in stock

Description

This Combat Control Kit is made from billet 4140 heat treated alloy steel with a beautiful nitride finish. The textured surface gives it an enhanced gripping ability. The ambidextrous safety selector can be used as a 90° or 60° throw lever. The mag release is deeply threaded to allow for normal height installation, or thread it halfway to get an extended mag release! The oversized bolt catch makes those mag reloads much easier and quicker. A must have for every build!

BKF MOD-1 AR15 Fluted 8 Position Anti-Tilt Carbine Length Buffer Tube Assembly Features include:

  • Billet machined from 6061-T651 aluminum for tighter concentricity than a forging or impact extrusion to reduce potential for bolt carrier binding.
  • 8 position adjustment with machined indicators visible through any stock with a viewing port located at the stock latch pin. Extended positions, increment adjustments have a finer spaced length of pull.
  • Mil Spec extension diameter of 1.148, and thread diameter of 1.185
  • Carbine length
  • Extended carrier support flange that supports the carrier for better anti-tilt performance.
  • Self aligns with the buffer detent.
  • Fluted for a more aesthetic look
  • Chamfered edges on the stock guide ramps for better feel
  • 3 Drain holes at 6 O’clock
  • Weight 3.45 oz
  • Proudly made in the USA!!!

Includes:

  • SB Tactical SBA3 Pistol Stabilizing Brace
  • BKF MOD-1 AR15 Fluted 8 Position Anti-Tilt Carbine Length Buffer Tube
  • BKF Standard Carbine buffer W/ Steel Weights (3). (3.0oz)
  • BKF Carbine Buffer spring
  • Steel Mil Spec end plate and Mil Spec locking (castle) nut – Phosphate Coating
  • Takedown Pin – Nitride
  • Pivot Pin – Nitride
  • CAS – Combat Ambi Selector 60/90 – Nitride
  • CMR – Combat Mag Release – Nitride
  • CBC – Combat Bolt Catch – Nitride
  • Mil-Spec Mag Catch Latch – Nitride
  • Mil-Spec spring kit
    • Pivot Pin Spring
    • Takedown Pin Spring
    • Buffer Retainer Spring
    • Selector Spring
    • Bolt Catch Spring
    • Magazine Catch Spring
  • Mil-Spec Small Parts Kit
    • Takedown Pin Detent
    • Pivot Pin Detent
    • Selector Pin
    • Bolt Catch Roll Pin
    • Bolt Catch Plunger
    • Buffer Retainer

This lower parts kit does not include the FCG, pistol grip or trigger guard.

Additional information

Weight 1.5 lbs
Dimensions 10 × 8 × 4 in

3 reviews for BKF M4 MOD-1 Fluted 8-Position Lower Build Kit W/ Combat Control Kit in Nitride Minus FCG (SB Tactical SBA3)

  1. OLEKSANDR N. (verified owner)

    Excellent! Really liked the fluted buffer tube!

  2. Andrew H. (verified owner)

    Great kit – very happy

  3. Brian (verified owner)

    I’m super impressed with the lower parts. The safety selector is the smoothest I have ever used, highly recommend!

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