AR-15 / AR-10 Parts

AR-15 / AR-10 Parts

Looking for the best AR platform parts on the Internet? You're here. Take a look and let's get to work. 

We build AR platform rifles weekly for some very discerning customers. We only build with what we sell, and we only sell what works. Leverage our experience in building or upgrading your AR platform and buy with confidence. 

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  • Out of Stock
    Geissele Automatics Super Duty MOD1 Complete Upper Receiver 10.3" - 5.56/.223

    Geissele Automatics Super Duty MOD1 Complete Upper Receiver 10.3" - 5.56/.223

    Geissele Automatics

    $1,260.00
    Super Duty MOD1 Complete Upper, 10.3", 5.56mm - Black  The Geissele Super Duty MOD1 Upper (Complete) represents the latest advancements in weapon technology exclusively from Geissele Automatics. This 10.3” complete upper is chambered in 5...
    $1,260.00
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  • Sig Sauer - MCX SPEAR-LT 5.56 NATO 11.5" - Replacement Barrel & Gas Block Assembly (8901313) Sig Sauer - MCX SPEAR-LT 5.56 NATO 11.5" - Replacement Barrel & Gas Block Assembly (8901313)

    Sig Sauer - MCX SPEAR-LT 5.56 NATO 11.5" - Replacement Barrel & Gas Block Assembly

    Sig Sauer

    $899.99
    SIG MCX-SPEAR LT 11.5-INCH 5.56 NATO BARREL AND GAS BLOCK ASSEMBLY Genuine replacement barrel for the 11.5" 5.56 MCX-SPEAR LT. Complete with barrel and gas block assembly. *Please Note: All NFA rules apply to the installation of these upper assemblies...
    $899.99
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  • Luth-AR M16 A1 Assembled Upper Receiver - Black Luth-AR, A1 Assembled Upper Receiver, Black, Forged, A1 Rear Sight Base Assembly, Ejection Port Cover Assembly, Teardrop Forward Assist Assembly, Brass Deflector

    Luth-AR M16 A1 Assembled Upper Receiver - Black

    Luth-AR

    MSRP: $199.95
    $187.85
    Luth-AR M16 A1 Assembled Upper Receiver - Black  Looking to build a high-quality retro looking AR? Start your project with a complete A1 upper receiver anodized. Comes with the standard features of a Mil-Spec upper receiver and is forged from...
    MSRP: $199.95
    $187.85
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  • Out of Stock
    Geissele Automatics Super Duty MOD1 Complete Upper Receiver 10.3" CHF Barrel - 1:7 Twist 5.56/.223 - Huxwrx Muzzle Device Geissele Automatics Super Duty MOD1 Complete Upper Receiver 10.3" CHF Barrel - 1:7 Twist 5.56/.223 - Huxwrx Muzzle Device

    Geissele Automatics Super Duty MOD1 Complete Upper Receiver 10.3" CHF Barrel - 1:7 Twist 5.56/.223 - Huxwrx Muzzle Device

    Geissele Automatics

    $1,410.00
    Super Duty MOD1 Complete Upper, 10.3", 5.56mm - DDC  The Geissele Super Duty MOD1 Upper (Complete) represents the latest advancements in weapon technology exclusively from Geissele Automatics. This 10.3” complete upper is chambered in 5.56mm...
    $1,410.00
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  • Geissele - Super ACR Trigger (05-240)

    Geissele - Super ACR Trigger - Two Stage Trigger .154"

    Geissele Automatics

    $245.00
    Super ACR Trigger The Super ACR offers improved ACR weapon system performance with a trigger similar in feel and operation to the Geissele Automatics' Super Semi-Automatic trigger. NOTICE: Follow all Bushmaster removal and installations to install this...
    $245.00
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  • Sons of Liberty Gun Works Enhanced Blaster Guts - B5 Lower Parts Kit

    Sons of Liberty Gun Works Enhanced Blaster Guts - B5 Lower Parts Kit

    Sons Of Liberty Gun Works

    $168.00
    Sons of Liberty Gun Works Enhanced Blaster Guts - B5 Lower Parts Kit Lower Parts Kit made from only the highest quality Mil-Spec or better components. The SOLGW Bolt Catch and Safety Selector are a Mil-Spec AISI8620 investment casting per the USGI TDP...
    $168.00
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  • Magpul - Enhanced Selector Kit - FDE

    Magpul - Enhanced Selector Kit - FDE

    Magpul Industries

    MSRP: $49.95
    $47.45
    Magpul Industries - (ESK) Enhanced Selector Kit - Fits AR Platforms in FDE The Magpul ESK (Enhanced Selector Kit) - AR is a modular, ambidextrous selector kit designed for AR pattern firearms that provides user-configurable selectors with modern...
    MSRP: $49.95
    $47.45
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  • TRIARC Systems 8.3" 300 Blackout Track 2.0 Barrel Kit

    TRIARC Systems 8.3" 300 Blackout Track 2.0 Barrel Kit

    TRIARC Systems

    $399.99
    TRACK™, a proprietary rifling known as Single Edge Polygonal (SEP) developed by TRIARC Systems, presents a groundbreaking advancement in gun barrel technology. This innovative rifling design combines the best aspects of standard and polygonal...
    $399.99
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  • Mystic Black Low Mass Steel BCG – .223 / 5.56 / .300 AAC Blackout Mystic Black Low Mass Steel BCG – .223 / 5.56 / .300 AAC Blackout

    CRYPTIC - .223 / 5.56 / .300 AAC Blackout - Mystic Black Low Mass Steel BCG

    CRYPTIC Coatings

    $315.00
    Mystic Black Low Mass Steel BCG – .223 / 5.56 / .300 AAC Blackout Bolt carrier group for AR15, M16, or M4 compatible with semi and full auto versions. Carrier is machined from Mil-Spec 8620 tool steel with shrouded firing pin and Mil-Spec chrome...
    $315.00
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    SOLGW M4L89 Upper 556 - 13.7" Pin and Weld - HUXWRX SOLGW M4L89 Upper 556 - 13.7" Pin and Weld - HUXWRX

    SOLGW M4L89 Upper 556 - 13.7" Pin and Weld - HUXWRX

    Sons Of Liberty Gun Works

    $1,050.00
    Sons of Liberty Gun Works believes in Quality Mil-Spec or better parts. They believe there is no substitute for quality and that your gun should be built right the first time, ready for hard use right out of the box. They believe a quality, accurate and...
    $1,050.00
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  • Geissele Ultra Duty Lower Parts Kit - Black

    Geissele Ultra Duty Lower Parts Kit - Black

    Geissele Automatics

    $147.90
    The Geissele Ultra Duty Lower Parts Kit is made for the most demanding operators and includes all the internal parts necessary to complete or rebuild your lower receiver. This top-tier LPK features proprietary Geissele designs, machined with great care...
    $147.90
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    SOLGW Broadsword Ambi Stripped Lower Receiver, BROADSWORD-LR, 691821452491 SOLGW Broadsword Ambi Stripped Lower Receiver, BROADSWORD-LR, 691821452491

    SOLGW Broadsword Ambi Stripped Lower Receiver

    Sons Of Liberty Gun Works

    MSRP: $345.00
    $327.75
    SOLGW Broadsword Ambi Stripped Lower Receiver The Broadsword Receiver Set is purpose‑built for shooters who demand enhanced ergonomics, superior trigger control, and precision‑driven performance beyond what a standard AR‑15 lower can offer. Developed...
    MSRP: $345.00
    $327.75
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    MSRP: $345.00
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