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BKF AR15 Enhanced Magpul Lower Build Kit (No Stock)

(34 customer reviews)


86 in stock


This product is 100% made in the USA! All components are phosphate or Nitride coated and include quality Mil-Spec parts for completing your AR15 lower receiver. Pair with our buffer tube assemblies for a smooth hassle free build.

  • A smoother pull with reduced grittiness

  • An enhanced basis for performing a trigger job


  •  Fire Control Group (Trigger, Hammer, Disconnector)
  • 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 Mag Catch Latch – Nitride
  • Mil-Spec Small Parts Kit
    • Takedown Pin – Nitride
    • Takedown Pin Detent
    • Pivot Pin- Nitride
    • Pivot Pin Detent
    • Trigger Pin- Nitride
    • Hammer Pin- Nitride
    • Selector Pin
    • Bolt Catch Roll Pin
    • Bolt Catch Plunger
    • Buffer Retainer
  • Magpul MOE Grip
    • Magpul Grip Screw
  • 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

Additional information

Weight 1 lbs
Dimensions 8 × 4 × 4 in

34 reviews for BKF AR15 Enhanced Magpul Lower Build Kit (No Stock)

  1. Gilles M. (verified owner)

    Great deal

  2. Jake (verified owner)

    Great set, especially for the price! Everything fit perfectly (and easily) into my Aero M4e1 build. The trigger is also pretty great and has an easy pull/ break. I’d definitely buy this set again and most likely will for my next build!

  3. Jefferey P. (verified owner)

    Awesome kit, everything went together buttery smooth.

  4. George F. (verified owner)

    All components were to spec! Perfecto!!

  5. ronflowers1022 (verified owner)

    Sound components that met specs! I had an extra Aero Precision set I didn’t need to use on my Aero
    pistol lower.

  6. Scott (verified owner)

    Installed on an Anderson lower. These parts fit perfectly! Quality was good. Buffer tube has a nice finish. I use an SBA4 pistol brace which tends to be hard to slide, but on the buffer provided with this kit, it slides nice and easy. A+

  7. Robert barbier (verified owner)

    Worked good

  8. John Tellen (verified owner)

    Works fine

  9. MARK U. (verified owner)

    Went together easy with my M4E1 receiver and worked out with my SBA3 that I bought without a buffer tube.

  10. Anonymous (verified owner)

  11. James o. (verified owner)

    Great doings business with a reputable dealer

  12. Joe Dykes (verified owner)

    Purchased for an Aero M4E1 lower, haven’t installed yet, but shipping was fast, and price was very competitive after shopping around at several sites. Lower receiver parts each came in separate bags with related springs/detents packaged together for each step to make it easy. Will be ordering from here again.

  13. Anonymous (verified owner)

    Just as ordered, thanks

  14. Michael K. (verified owner)

    BKF’s enhanced kit has a considerably smoother pull to the trigger than other brand name kits. Zero grit to the pull and a clean break.

  15. Kyle G. (verified owner)

  16. John W. (verified owner)

    Great build kit at a great price! Exactly what I was looking for.

  17. Charles Wells (verified owner)

    Great customer service, great shipping time, and a high quality product. The pistol has been assembled and I will say that this is one of the best ‘out of the box’ triggers I have felt. Not just run of the mill mil-spec feel.

  18. Jon H. (verified owner)

    Very quality kit

  19. Anonymous (verified owner)

    Clean break, definitely a big step up from milspec

  20. Kevin H. (verified owner)

    Perfect kit! Everything I needed to finish my lower at a great price!!

  21. Rhyan Belisle (verified owner)

    Great product and easily installed. Appears to be quality construction. Waiting on a few other items to slap it all together and put rounds down range.

  22. Ben Z. (verified owner)

  23. Danny Mocanu (verified owner)

  24. Gabriel LeBoeuf (verified owner)

  25. Jay B. (verified owner)

    Great sets, work and fit fine. Good quality

  26. Anonymous (verified owner)

    Great kit for the price. Everything I needed in 1 kit.

  27. Rich L. (verified owner)

    Good price and good service

  28. Raymond (verified owner)

    Only reason for a 3 is because I haven’t used the kit in a build yet. So I can’t tell you Good or Bad. Arrived in a reasonable time and appears to be ok by looks only

  29. Andrew (verified owner)

    Worth every penny. Excellent customer service. Will be back.

  30. Jeff Woodall (verified owner)

  31. Kevin W. (verified owner)

    Came as described and mil specs at great price, thanks

  32. Brandon C. (verified owner)

    Great price, fast shipping.

  33. Jason S. (verified owner)

    Price was excellent!!! Everything went together like a glove. Received the package within 1 week of ordering. Did I mention great price!!! Buffer Tube has the cut out in front that holds on the buffer on the detent so it is straight when you tighten the castle nut (I love this option all buffers should be made this way) and the trigger has a great reset with a better pull then regular mil-spec triggers. I would totally recommend this lower parts kit!!!

  34. Danielle (verified owner)

    Great company. Love the products, service, and prices.

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