Lower Build Kits

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Lower Build Kits

AR15Discounts has a great selection of Lower Build Kits. We have budget friendly kits starting under $80 and premium kits at competitive prices.

Explore our Curated Selection of Lower Build Kits from Top Tier Brands

Aero Precision , Magpul , Dirty Bird Industries , B5 Systems , NBS

  • NBS Bare Bones Lower Build Kit

    NBS Bare Bones Lower Build Kit

    MSRP: $59.95
    $53.90
  • RAVE-140 Lower Parts Kit Minus Grip

    RAVE-140 Lower Parts Kit Minus Grip

    MSRP: $179.99
    $122.90
  • Carbine Lower Build Kit Configurator

    Carbine Lower Build Kit Configurator
  • Sale!
    Trinity Force Breach Blade Pistol Lower Build Kit
    SALE ENDS: 00h 00m 00s

    Trinity Force Breach Blade Pistol Lower Build Kit

    Save 40%
    MSRP: $109.95
    $65.95
  • Dirty Bird SBA3 Lower Build Kit

    Dirty Bird SBA3 Lower Build Kit

    MSRP: $219.95
    $179.95
  • Dirty Bird Magpul MOE Fixed 2-Stage Lower Build Kit

    Dirty Bird Magpul MOE Fixed 2-Stage Lower Build Kit

    MSRP: $229.95
    $189.75
  • Magpul PRS Lower Build Kit Minus FCG

    Magpul PRS Lower Build Kit Minus FCG

    MSRP: $359.95
    $328.80
  • Magpul CTR Carbine Lower Build Kit

    Magpul CTR Carbine Lower Build Kit

    MSRP: $199.95
    $94.30
  • Magpul STR Carbine Lower Build Kit

    Magpul STR Carbine Lower Build Kit

    MSRP: $229.95
    $175.00
  • Dirty Bird Magpul UBR 2-Stage Lower Build Kit

    Dirty Bird Magpul UBR 2-Stage Lower Build Kit

    MSRP: $361.95
    $341.70