Gun Parts & Upgrades

AR-15 and other rifle parts and upgrades: triggers, barrels and muzzle devices, stocks and grips, receivers, magazines, and lights and lasers. Filter by type and brand to find the part for your build.

5328 results

  • B5SRK-1657_1_HR

    B5 SIERRA K STOCK COYOTE

    Sale
    ManufacturerB5 Systems
    ColorCoyote
    FitAR Rifles
    Manufacturer Part #SRK-1657
    ModelSierra K
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SIERRA K STOCK COYOTE

    $57.95
    $61.00 $57.95
    Sale
  • B5SRK-1658_1_HR

    B5 SIERRA K STOCK ODG

    Sale
    ManufacturerB5 Systems
    ColorOlive Drab Green
    FitAR Rifles
    Manufacturer Part #SRK-1658
    ModelSierra K
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SIERRA K STOCK ODG

    $57.95
    $61.00 $57.95
    Sale
  • B5SOP-1351_1_HR

    B5 SOPMOD STK GOV MIL-SPEC BLK

    Sale
    ManufacturerB5 Systems
    ColorBlack
    DescriptionSOPMOD Government
    Manufacturer Part #SOP-1351
    ModelSOPMOD
    SizeMil Spec
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SOPMOD STK GOV MIL-SPEC BLK

    $95.00
    $100.00 $95.00
    Sale
  • B5SOP-1352_1_HR

    B5 SOPMOD STK GOV MIL-SPEC COY

    Sale
    ManufacturerB5 Systems
    ColorCoyote
    DescriptionSOPMOD Government
    Manufacturer Part #SOP-1352
    ModelSOPMOD
    SizeMil Spec
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SOPMOD STK GOV MIL-SPEC COY

    $95.00
    $100.00 $95.00
    Sale
  • B5SOP-1074_1_HR

    B5 SOPMOD STK MIL-SPEC BLK

    Sale
    ManufacturerB5 Systems
    AccessoriesQuick Detach Mount
    ColorBlack
    Manufacturer Part #SOP-1074
    ModelSOPMOD
    SizeMil Spec
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SOPMOD STK MIL-SPEC BLK

    $95.00
    $100.00 $95.00
    Sale
  • B5SOP-1076_1_HR

    B5 SOPMOD STK MIL-SPEC CB

    Sale
    ManufacturerB5 Systems
    AccessoriesQuick Detach Mount
    ColorCoyote
    Manufacturer Part #SOP-1076
    ModelSOPMOD
    SizeMil Spec
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SOPMOD STK MIL-SPEC CB

    $95.00
    $100.00 $95.00
    Sale
  • B5SOP-1075_1

    B5 SOPMOD STK MIL-SPEC FDE

    Sale
    ManufacturerB5 Systems
    AccessoriesQuick Detach Mount
    ColorFlat Dark Earth
    Manufacturer Part #SOP-1075
    ModelSOPMOD
    SizeMil Spec
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SOPMOD STK MIL-SPEC FDE

    $95.00
    $100.00 $95.00
    Sale
  • B5SOP-1123_1_HR

    B5 SOPMOD STK MIL-SPEC GRY

    Sale
    ManufacturerB5 Systems
    AccessoriesQuick Detach Mount
    ColorGray
    Manufacturer Part #SOP-1123
    ModelSOPMOD
    SizeMil Spec
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SOPMOD STK MIL-SPEC GRY

    $95.00
    $100.00 $95.00
    Sale
  • B5SOP-1422_1_HR

    B5 SOPMOD STK MIL-SPEC MULTICAM BLK

    Sale
    ManufacturerB5 Systems
    AccessoriesQuick Detach Mount
    ColorMultiCam Black
    Manufacturer Part #SOP-1422
    ModelSOPMOD
    SizeMil Spec
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SOPMOD STK MIL-SPEC MULTICAM BLK

    $121.60
    $128.00 $121.60
    Sale
  • B5SOP-1097_1_HR

    B5 SOPMOD STK MIL-SPEC ODG

    Sale
    ManufacturerB5 Systems
    AccessoriesQuick Detach Mount
    ColorOlive Drab Green
    Manufacturer Part #SOP-1097
    ModelSOPMOD
    SizeMil Spec
    SubcategoryStocks & Buffer Tubes
    TypeStock
    In stock
    B5 Systems

    B5 SOPMOD STK MIL-SPEC ODG

    $95.00
    $100.00 $95.00
    Sale
  • B5SRK-1660_1_HR

    B5 SRK EXTENSION KIT BLK

    Sale
    ManufacturerB5 Systems
    ColorBlack
    Manufacturer Part #SRK-1660
    ModelSierra K
    SubcategoryStocks & Buffer Tubes
    TypeBuffer Tube Complete Assembly
    In stock
    B5 Systems

    B5 SRK EXTENSION KIT BLK

    $128.25
    $135.00 $128.25
    Sale
  • B5PTG-1127_1_HR

    B5 TRIGGER GUARD COMPOSITE BLK

    ManufacturerB5 Systems
    ColorBlack
    Manufacturer Part #PTG-1127
    SubcategoryLong Gun Parts
    TypeTrigger Guard
    In stock
    B5 Systems

    B5 TRIGGER GUARD COMPOSITE BLK

    $9.99
    $0.00 $9.99
  • B5PTG-1128_1_HR

    B5 TRIGGER GUARD COMPOSITE FDE

    ManufacturerB5 Systems
    ColorFlat Dark Earth
    Manufacturer Part #PTG-1128
    SubcategoryLong Gun Parts
    TypeTrigger Guard
    In stock
    B5 Systems

    B5 TRIGGER GUARD COMPOSITE FDE

    $9.99
    $0.00 $9.99
  • B5ATG-1103_1_HR

    B5 TRIGGER GUARD FDE

    Sale
    ManufacturerB5 Systems
    ColorFlat Dark Earth
    DescriptionTrigger Guard
    Manufacturer Part #ATG-1103
    SubcategoryLong Gun Parts
    TypeTrigger Guard
    In stock
    B5 Systems

    B5 TRIGGER GUARD FDE

    $19.00
    $20.00 $19.00
    Sale
  • B5VFG-1571_1_HR

    B5 VERTICAL GRIP M-LOK BLK

    Sale
    ManufacturerB5 Systems
    ColorBlack
    FitAR Rifles
    Manufacturer Part #VFG-1571
    ModelVertical Grip
    SubcategoryGrips
    TypeVertical Foregrip
    In stock
    B5 Systems

    B5 VERTICAL GRIP M-LOK BLK

    $19.00
    $20.00 $19.00
    Sale
  • B5VFG-1573_1_HR

    B5 VERTICAL GRIP M-LOK COYOTE BROWN

    Sale
    ManufacturerB5 Systems
    ColorCoyote
    FitAR Rifles
    Manufacturer Part #VFG-1573
    ModelVertical Grip
    SubcategoryGrips
    TypeVertical Foregrip
    In stock
    B5 Systems

    B5 VERTICAL GRIP M-LOK COYOTE BROWN

    $19.00
    $20.00 $19.00
    Sale
  • B5VFG-1572_1_HR

    B5 VERTICAL GRIP M-LOK FDE

    Sale
    ManufacturerB5 Systems
    ColorFlat Dark Earth
    FitAR Rifles
    Manufacturer Part #VFG-1572
    ModelVertical Grip
    SubcategoryGrips
    TypeVertical Foregrip
    In stock
    B5 Systems

    B5 VERTICAL GRIP M-LOK FDE

    $19.00
    $20.00 $19.00
    Sale
  • B5VFG-1576_1_HR

    B5 VERTICAL GRIP M-LOK MULTI-CAM

    Sale
    ManufacturerB5 Systems
    ColorMultiCam
    FitAR Rifles
    Manufacturer Part #VFG-1576
    ModelVertical Grip
    SubcategoryGrips
    TypeVertical Foregrip
    In stock
    B5 Systems

    B5 VERTICAL GRIP M-LOK MULTI-CAM

    $27.55
    $29.00 $27.55
    Sale
  • B5VFG-1577_1_HR

    B5 VERTICAL GRIP M-LOK MULTICAM BLK

    Sale
    ManufacturerB5 Systems
    ColorMultiCam Black
    FitAR Rifles
    Manufacturer Part #VFG-1577
    ModelVertical Grip
    SubcategoryGrips
    TypeVertical Foregrip
    In stock
    B5 Systems

    B5 VERTICAL GRIP M-LOK MULTICAM BLK

    $27.55
    $29.00 $27.55
    Sale
  • B5VFG-1574_1_HR

    B5 VERTICAL GRIP M-LOK OD GREEN

    Sale
    ManufacturerB5 Systems
    ColorOlive Drab Green
    FitAR Rifles
    Manufacturer Part #VFG-1574
    ModelVertical Grip
    SubcategoryGrips
    TypeVertical Foregrip
    In stock
    B5 Systems

    B5 VERTICAL GRIP M-LOK OD GREEN

    $19.00
    $20.00 $19.00
    Sale
  • B5VFG-1575_1_HR

    B5 VERTICAL GRIP M-LOK WOLF GRAY

    Sale
    ManufacturerB5 Systems
    ColorGray
    FitAR Rifles
    Manufacturer Part #VFG-1575
    ModelVertical Grip
    SubcategoryGrips
    TypeVertical Foregrip
    In stock
    B5 Systems

    B5 VERTICAL GRIP M-LOK WOLF GRAY

    $19.00
    $20.00 $19.00
    Sale
  • B5VFG-1578_1_HR

    B5 VERTICAL GRIP M-LOK WOODLAND

    Sale
    ManufacturerB5 Systems
    ColorWoodland Camo
    FitAR Rifles
    Manufacturer Part #VFG-1578
    ModelVertical Grip
    SubcategoryGrips
    TypeVertical Foregrip
    In stock
    B5 Systems

    B5 VERTICAL GRIP M-LOK WOODLAND

    $27.55
    $29.00 $27.55
    Sale
  • BAD-AUTH-UR16B-Y-15_1_HR

    BAD 16 UPPR AUTH ELITE 556 AMBI BLK

    ManufacturerBattle Arms Development
    AccessoriesBad Rack-15 Charging Handle, AR15/M16 Bolt Carrier Group
    Barrel Length16"
    Caliber556NATO
    ColorBlack
    DescriptionM-LOK
    FitAR-15
    Manufacturer Part #BAD-AUTH-UR16B-Y-15
    ModelAuthority Elite
    SubcategoryComplete Upper Receivers
    TypeUpper
    In stock
    Battle Arms Development

    BAD 16 UPPR AUTH ELITE 556 AMBI BLK

    $864.61
    $0.00 $864.61
  • BAD-AUTH-UR16B-Y-15C_1_HR

    BAD 16 UPPR AUTH ELITE 556AMBI C BLK

    ManufacturerBattle Arms Development
    AccessoriesBad Rack-15 C Charging Handle, AR15/M16 Bolt Carrier Group
    Barrel Length16"
    Caliber556NATO
    ColorBlack
    DescriptionM-LOK
    FitAR-15
    Manufacturer Part #BAD-AUTH-UR16B-Y-15C
    ModelAuthority Elite
    SubcategoryComplete Upper Receivers
    TypeUpper
    In stock
    Battle Arms Development

    BAD 16 UPPR AUTH ELITE 556AMBI C BLK

    $864.61
    $0.00 $864.61