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    AR-15 Parts and Accessories

    Great Selection on AR-15 Tactical Accessories and Parts

    AT3 tactical offers a wide-range of top-rated AR 15 parts and tactical accessories. Build your ultimate AR-15 with our great selection of AR-15 scopes, AR-15 magazines, handguards & quad rails, best red dot sights, lower parts kit, iron sights, upper receiver, AR barrels, and more! We also carry AR-15 accessories from the top brands like Magpul, Aero & more!

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    On Sale
    AT3 RD-50 PRO™ Micro Red Dot Reflex Sight w/ Riser Mount & Armor
    $114.99 $99.99
    On Sale
    AT3™ LEOS™ Red Dot Sight with Integrated Laser Sight & Riser
    From $138.99 $117.99
    On Sale
    AT3™ SPEAR M-LOK™ AR-15 Free Float Handguard - 12 & 15 inch Lengths
    From $123.99 $89.99
    On Sale
    Magpul MOE M-LOK Furniture Kit - Stock, Carbine Handguard & Grip
    From $111.15 $94.99
    On Sale
    AT3™ Upper Receiver and SPEAR Handguard Combo
    From $164.99 $154.99
    On Sale
    AT3 RD-50™ Micro Red Dot Reflex Sight
    $88.99 $74.99
    On Sale
    1005 Tactical 2-Stage Nickel Boron AR-15 Trigger Assembly - 4.5 lb Pull Weight
    $99.99 $87.99
    On Sale
    AT3™ PROMOD-K Keymod AR-15 Free Float Handguard - 10”, 12”, & 15” Lengths
    From $110.99 $93.99
    On Sale
    AT3™ Enhanced Nickel Teflon AR-15 Trigger Assembly
    $40.99 $37.99
    On Sale
    AT3™ Pro Series Flip-Up Backup Iron Sights (BUIS) - Front & Rear Set - Same Plane - IS-09
    From $58.99 $49.99
    On Sale
    Magpul MOE SL™ SLIM LINE Furniture Kit - Stock, Grip & M-LOK Carbine Handguard
    From $139.55 $115.99
    On Sale
    AT3™ Low Profile Micro Steel Gas Block - 4 Sizes Available
    From $30.99 $25.99
    On Sale
    Magpul PREMIUM AR-15 Furniture Kit - CTR Stock, MOE+ Grip & M-LOK Carbine Handguard
    From $132.55 $110.99
    On Sale
    AT3™ Flip Up Backup Iron Sights (BUIS) - Front & Rear Set - Same Plane or Gas Block Height
    From $45.99 $38.99
    On Sale
    AT3™ Low Profile Steel Gas Block + Gas Tube + Roll Pin Combo
    From $42.99 $35.99
    On Sale
    AT3™ Gas Tubes with Roll Pin - 4 Lengths Available: Carbine, Mid, Rifle, & Pistol - Stainless
    $16.99 $13.99
    Wojtek Weaponry Adjustable Gas Block - 4 Sizes Available
    From $34.99
    On Sale
    AT3™ AR-15 Tactical Compensator with Crush Washer
    $29.99 $24.99
    On Sale
    AT3 RD-ARMOR Protective Cover with Lens Caps for RD-50 Red Dot Sight
    $17.99 $14.99
    On Sale
    AT3™ AR-15 Bolt Carrier Group - 5.56 NATO/.300 Blackout - Black Nitride
    $117.99 $99.99
    On Sale
    AT3™ 2-Stage Lower Parts Kit with 1005 Tactical Nickel Boron Trigger - No Grip or Trigger Guard
    $125.99 $115.99
    On Sale
    AT3™ Mil Spec Buffer Tube Kit - AR-15
    $38.99 $32.99
    On Sale
    AT3™ AR-15 Armorer's Wrench / Multi-Function Tool
    $23.99 $19.99
    On Sale
    KAK Industry Slimline Flash Can - 1/2x28 Thread
    From $30.00 $20.00