• Faxon Duty Series .223 Rem/5.56 NATO 10.5 in 1-8 Twist Pencil Contour Barrel Nitride Black

    Faxon Duty Series .223 Rem/5.56 NATO 10.5 in 1-8 Twist Pencil Contour Barrel Nitride Black

    $174.99     Add to Bag
  • Faxon Firearms Duty 9mm 8.5 in AR15 Tapered Contour Barrel, 1-10 Twist, Nitride

    Faxon Firearms Duty 9mm 8.5 in AR15 Tapered Contour Barrel, 1-10 Twist, Nitride

    $123.99     Add to Bag
  • CMMG UPPR RSLT MK4 350LEG 16.1" BLK

    CMMG UPPR RSLT MK4 350LEG 16.1″ BLK

    $954.99
  • Spikes Tactical STU5025R9S .223 Rem/5.56 NATO 16" Black Phosphate 1:7 Twist Optic Ready Upper

    Spikes Tactical STU5025R9S .223 Rem/5.56 NATO 16″ Black Phosphate 1:7 Twist Optic Ready Upper

    $788.99     Add to Bag
  • GG&G UFIR Under Foregrip Mount Rail, Picatinny, Black, 4-1/2 in Direct Thread

    GG&G UFIR Under Foregrip Mount Rail, Picatinny, Black, 4-1/2 in Direct Thread

    $30.99     Add to Bag
  • 7.62X39 RUSSIAN 10.5'' 1-8 TWIST GUNNER CONTOUR BBL NITRIDE

    7.62X39 RUSSIAN 10.5” 1-8 TWIST GUNNER CONTOUR BBL NITRIDE

    $173.99
  • Faxon Firearms Duty 9mm 10.5 in 1-10 Twist Tapered Contour Nitride Barrel

    Faxon Firearms Duty 9mm 10.5 in 1-10 Twist Tapered Contour Nitride Barrel

    $133.99     Add to Bag
  • Diamondback DB Barrel 300 Blackout 10 in Pistol-Length Black Nitride 1:8 Twist 4150 CMV

    Diamondback DB Barrel 300 Blackout 10 in Pistol-Length Black Nitride 1:8 Twist 4150 CMV

    $103.99
  • CMMG 300 AAC Blackout 8 in AR15 Barrel Sub-Assembly, 1:7 Twist, Nitride

    CMMG 300 AAC Blackout 8 in AR15 Barrel Sub-Assembly, 1:7 Twist, Nitride

    $202.99
  • FightLite MCR 5.56 NATO Complete Upper, 16.25 in Threaded Barrel, Picatinny Rail, Black

    FightLite MCR 5.56 NATO Complete Upper, 16.25 in Threaded Barrel, Picatinny Rail, Black

    $7,424.99     Add to Bag
  • Ballistic Advantage Premium Black Series 6mm ARC 18in Barrel, 1:7 Twist, QPQ Finish

    Ballistic Advantage Premium Black Series 6mm ARC 18in Barrel, 1:7 Twist, QPQ Finish

    $251.75     Add to Bag
  • Faxon Firearms FF76239GBCNITRIDE Type 1 7.62x39mm Salt Bath Nitride 9310 Steel AR-10

    Faxon Firearms FF76239GBCNITRIDE Type 1 7.62x39mm Salt Bath Nitride 9310 Steel AR-10

    $76.99     Add to Bag

    • Showing 493–504 of 756 resultsSorted by popularity

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    $13 – $7425
    Firearm Specs
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    Category AR15 Parts
    379 products
    FFL transfer available · $50 flat rate · Birmingham pickup
    7.62X39 RUSSIAN 16'' 1-8 TWIST GUNNER CONTOUR BBL NITRIDE
    FAXON FIREARMS

    7.62X39 RUSSIAN 16'' 1-8 TWIST GUNNER CONTOUR BBL NITRIDE

    $171.99
    In Stock
    ACI U5568ML 556 8" NATO MLOK UPPER
    ANDRO CORP INDUSTRIES

    ACI U5568ML 556 8" NATO MLOK UPPER

    $424.15
    In Stock
    ADAPTIVE ARKUS AR STOCK MIL SPEC BLK
    Adaptive Tactical

    ADAPTIVE ARKUS AR STOCK MIL SPEC BLK

    $54.99
    In Stock
    Aim Sports MT061 AR-15 Mid-Length Free Float Quad Rail Handguard, 10 in, Aluminum, Black Anodized
    Aim Sports

    Aim Sports MT061 AR-15 Mid-Length Free Float Quad Rail Handguard, 10 in, Aluminum, Black Anodized

    $49.99
    In Stock
    American Tactical / ATI Alpha Maxx Lower and Upper Set Stripped Black MULTI-CAL
    American Tactical / ATI

    American Tactical / ATI Alpha Maxx Lower and Upper Set Stripped Black MULTI-CAL

    $74.99
    In Stock
    ANDRO CORP INDUSTRIES ACI-15 LACI15S Stripped Lower Receiver, AR-15, Multi, Black Anodized Aluminum
    ANDRO CORP INDUSTRIES

    ANDRO CORP INDUSTRIES ACI-15 LACI15S Stripped Lower Receiver, AR-15, Multi, Black Anodized Aluminum

    $79.99
    In Stock
    ANDRO CORP INDUSTRIES ACI-15 Partial M4 Lower Receiver Multi Aluminum Blk Anodized AR-15
    ANDRO CORP INDUSTRIES

    ANDRO CORP INDUSTRIES ACI-15 Partial M4 Lower Receiver Multi Aluminum Blk Anodized AR-15

    $198.99
    In Stock
    ANDRO CORP INDUSTRIES U556103ML 556 NATO 10.3 in MLOK Upper
    ANDRO CORP INDUSTRIES

    ANDRO CORP INDUSTRIES U556103ML 556 NATO 10.3 in MLOK Upper

    $429.25
    In Stock
    ANDRO CORP INDUSTRIES U55616ML 556 NATO MLOK Upper
    ANDRO CORP INDUSTRIES

    ANDRO CORP INDUSTRIES U55616ML 556 NATO MLOK Upper

    $446.25
    In Stock
    Ar Five Seven Center AR57 Ultra Light Tactical Upper Assembly 5.7x28mm 12 in, Black Melonite
    Ar Five Seven Center

    Ar Five Seven Center AR57 Ultra Light Tactical Upper Assembly 5.7x28mm 12 in, Black Melonite

    $835.99
    In Stock
    AR-15 9MM UPPER RECEIVER
    Spikes Tactical

    AR-15 9MM UPPER RECEIVER

    $137.99
    In Stock
    Armaspec Anti-Walk Trigger/Hammer Pins and Keys, Standard .154, Stainless Finish
    Armaspec

    Armaspec Anti-Walk Trigger/Hammer Pins and Keys, Standard .154, Stainless Finish

    $13.99
    In Stock