SBA3 Pistol Brace AR 15 Lower Build Kit

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SBA3 Pistol Brace AR 15 Lower Build Kit

Designed for all platforms capable of accepting a mil-spec carbine receiver extension, the SBA3™ is 5-position adjustable and features an integral, ambidextrous QD sling socket. The SBA3 is designed to give the shooter extra stability when firing as a pistol. The build kit comes with everything you need to complete your build.

Kit Includes:

SBA3 Tactical Brace


  • Minimalist design
  • 5-position adjustable
  • Includes 7075 mil-spec carbine receiver extension
  • Integral, ambidextrous QD sling socket
  • ATF compliant, US veteran designed and proudly made in the USA
  • Product includes:  brace, mil-spec carbine receiver extension, adjustable nylon strap

M4 Carbine Buffer Tube Extension


  • 6-position Receiver Extension
  • Buffer
  • Castle Nut
  • End Plate
  • Spring

AR 15 Lower Parts Kit

Parts Included:

  • Bolt Catch
  • Bolt Catch Plunger 
  • Bolt Catch Roll Pin
  • Bolt Catch Spring
  • Buffer Retainer
  • Buffer Retainer Spring
  • Disconnect
  • Disconnect Spring
  • Hammer (Black Oxidize)
  • Hammer Pin
  • Hammer Spring
  • Magazine Catch
  • Magazine Catch Button
  • Magazine Catch Spring
  • A2 Pistol Grip
  • Pistol Grip Lock Washer
  • Pistol Grip Screw
  • Pivot Pin
  • Pivot Pin Detent
  • Pivot Pin Detent Spring
  • Selector
  • Selector Detent 
  • Selector Detent Spring
  • Takedown Pin (Front & Rear)
  • Takedown Pin Detent 
  • Detent Springs (2)
  • Trigger (Black Oxide)
  • Trigger Guard
  • Trigger Guard Roll Pin
  • Trigger Pin
  • Trigger Spring
  • Parts Are In Colored Bags For Easy Assembly
  • 100% American Made
  • Lifetime Warranty

Extra Information


3 Reviews

  • Posted by Unknown on Sep 11th 2019


    SB Tactical Lower Kit

    Fantastic shipping time and a fantastic price. What more is there to ask for? Haven't yet finished the build, but BRD isn't known to disappoint.

  • Posted by Sean Lewis on Jun 6th 2019



    if you have a pistol buiuld these are a must have.

  • Posted by Roger Eagleson on May 22nd 2019


    SB Brace

    love the sb tactical brace, quick shipping and a great price