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BKF AR15 Enhanced Lower Build Kit

(4 customer reviews)

$99.99 $69.99

95 in stock


This product is 100% made in the USA! All components are quality Mil-Spec parts for completing your AR15 lower receiver. Trust in BKF for a smooth hassle free build.

ELG stands for ‘Enhanced Longitudinal Grind’. Our new lower parts kits have set the standard when it comes to out-of-the-box mil-spec performance.  At the heart of this kit stands the longitudinally-ground trigger, which is ground in-line with the direction of pull along the long axis of the trigger, and then finish-polished. This grind and polish provide two significant advantages over standard mil-spec kits: 

  • A smoother pull with reduced grittiness

  • An enhanced basis for performing a trigger job


  • ‘ELG’ Fire Control Group (Trigger, Hammer, Disconnector)
  • Billet Extended magazine release Button
  • Mil-Spec spring kit
    • Hammer Spring
    • Trigger Spring
    • Disconnector Spring
    • Pivot Pin Spring
    • Takedown Pin Spring
    • Buffer Retainer Spring
    • Selector Spring
    • Bolt Catch Spring
    • Magazine Catch Spring
  • Mil-Spec Selector
  • Mil-Spec Bolt Catch
  • Mil-Spec Small Parts Kit
    • Takedown Pin Finished in Nitride
    • Takedown Pin Detent
    • Pivot Pin Finished in Nitride
    • Pivot Pin Detent
    • Trigger Pin
    • Hammer Pin
    • Selector Pin
    • Bolt Catch Roll Pin
    • Bolt Catch Buffer
    • Buffer Retainer
  • Mil-Spec Grip Kit
    • A2 Grip
    • Hex-head screw
    • Lock washer
  • Mil-Spec Metal Trigger Guard Kit
    • Trigger Guard
    • Trigger Guard Roll Pin

BKF Mil-Spec AR15 or LR308 (DPMS) Anti-Rotation Carbine Length Buffer Tube:


  • BKF T6 6061 Mil-Spec buffer tube (6 Position) – U-cut Anti-Rotation
  • BKF 3 oz carbine buffer
  • BKF Carbine buffer spring
  • BKF Steel end plate
  • BKF Steel castle nut
  • M4 Sliding stock

Additional information

Weight 1 lbs
Dimensions 8 × 4 × 4 in




Product Type




4 reviews for BKF AR15 Enhanced Lower Build Kit

  1. Paul G. (verified owner)

    Fast shipping! Good quality Mil Spec kit at a great price!

  2. Michael C. (verified owner)

    The LPK was a great deal with high quality parts!

  3. nramoore (verified owner)

    Received this afternoon…
    Great price, very competitive shipping price, quick shipping, appears to be good stuff.

  4. Rex M. (verified owner)

    This kit appears to be very good stuff for my next carbine build. Competitive price, well packaged, and timely shipping by BKF…

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