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  • Geissele Barrel Nut Wrench is a durable steel armorer tool for installing and removing compatible Geissele AR-15 barrel nut systems.

    Geissele Automatics Barrel Nut Wrench

    $11.00
    Geissele Automatics Barrel Nut Wrench, Black The Geissele Automatics Barrel Nut Wrench is a purpose-built steel tool for installing and removing compatible Geissele barrel nuts. Finished in black,...
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  • Geissele mil-spec AR-15 buffer tube assembly includes a Super 42 braided spring, H1 buffer, castle nut, and end plate for dependable cycling.

    Geissele Automatics Premium Mil-Spec Buffer Tube Assembly with Super 42 H1 Buffer, Black

    $133.00
    Geissele Automatics Premium Mil-Spec Buffer Tube Assembly with Super 42 H1 Buffer, Black The Geissele Automatics Premium Mil-Spec Buffer Tube Assembly combines a mil-spec 7075-T6 aluminum carbine...
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  • Geissele MK16 13.5-inch AR-15 handguard delivers rigid 7000 Series aluminum construction, M-LOK mounting, and durable black hardcoat anodizing. Geissele MK16 13.5-inch AR-15 handguard delivers rigid 7000 Series aluminum construction, M-LOK mounting, and durable black hardcoat anodizing.

    Geissele Automatics Super Modular Rail MK16 AR-15 Handguard – 13.5" M-LOK, Black

    $350.00
    Geissele Automatics Super Modular Rail MK16 AR-15 Handguard – 13.5" M-LOK, Black The Geissele Automatics Super Modular Rail MK16 is a 13.5" AR-15 handguard built for rigid, adaptable accessory...
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    $350.00
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  • Geissele Reliability Enhancement Kit pairs a Reliability Enhanced BCG, Super 42 braided spring, and H3 buffer for compatible AR-15 builds.

    Geissele Automatics Reliability Enhancement Kit with H3 Buffer for AR-15

    $494.00
    Geissele Automatics Reliability Enhancement Kit with H3 Buffer for AR-15 The Geissele Automatics Reliability Enhancement Kit combines three critical AR-15 operating-system components in one matched...
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  • Geissele Ultra Duty AR-15 lower parts kit includes Maritime Bolt Catch, ambidextrous safety, and trigger guard—without a fire control group.

    Geissele Automatics Ultra Duty AR-15 Lower Parts Kit, Black – No Fire Control Group

    $153.00
    Geissele Automatics Ultra Duty AR-15 Lower Parts Kit, Black – No Fire Control Group A Terran Gear USA favorite, the Geissele Automatics Ultra Duty Lower Parts Kit provides premium internal...
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  • Geissele SSA 4.5 lb two-stage AR trigger combines precise control and durable, non-adjustable performance for CQB and carbine applications. Geissele SSA 4.5 lb two-stage AR trigger combines precise control and durable, non-adjustable performance for CQB and carbine applications.

    Geissele Automatics Super Semi-Automatic Trigger (SSA)

    $250.00
    Geissele Automatics Super Semi-Automatic Trigger (SSA) The Geissele Automatics Super Semi-Automatic Trigger, commonly known as the SSA, is a non-adjustable 4.5 lb two-stage combat trigger designed...
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  • Geissele Super Duty assembled AR-15 upper receiver features 7075-T6 aluminum, M4 feed ramps, T-marks, and hardcoat anodized durability for custom builds.

    Geissele Automatics Super Duty Assembled AR-15 Upper Receiver, Black

    $185.00
    Geissele Automatics Super Duty Assembled AR-15 Upper Receiver, Black The Geissele Automatics Super Duty Assembled AR-15 Upper Receiver provides a precision-machined, mil-spec foundation for a custom...
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  • Geissele Super Duty stripped AR-15 lower features 7075-T6 aluminum, mil-spec dimensions, and hardcoat anodizing for custom 5.56 builds. Geissele Super Duty stripped AR-15 lower features 7075-T6 aluminum, mil-spec dimensions, and hardcoat anodizing for custom 5.56 builds.

    Geissele Automatics Super Duty AR-15 Lower Receiver – Stripped Lower

    $175.00
    Geissele Automatics Super Duty AR-15 Lower Receiver – Stripped Lower The Geissele Automatics Super Duty Stripped Lower Receiver provides a precision-machined, mil-spec foundation for a custom...
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  • Geissele USASOC Airborne Charging Handle in black offers precise fit, durable construction, and reliable operation for compatible AR-15 builds. Geissele USASOC Airborne Charging Handle in black offers precise fit, durable construction, and reliable operation for compatible AR-15 builds.

    Geissele Automatics USASOC Airborne Charging Handle, Black

    $120.00
    Geissele Automatics USASOC Airborne Charging Handle, Black The Geissele Automatics USASOC Airborne Charging Handle delivers a durable, precision-manufactured upgrade for compatible AR-15-pattern...
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    $120.00
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  • Shop the Geissele Automatics Standard Lower Parts Kit for AR-15 at Terran Gear USA. This 18-piece mil-spec LPK features Posi-Snap safety for positive clicks, no grip or trigger included. Perfect for custom builds and reliable performance. Fast shipping from California.

    Geissele Automatics Standard Lower Parts Kit (Part #05-343)

    $60.18
    Geissele Automatics Standard Lower Parts Kit - AR-15 (No Grip, No Fire Control Group) The Geissele Automatics Standard Lower Parts Kit provides everything you need to finish or refresh your AR-15...
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  • Upgrade your AR-15 with the Geissele Super Duty® Stainless Takedown Pin Set. Precision-machined, corrosion-resistant pins designed for smooth, reliable operation. Available at Terran Gear USA Upgrade your AR-15 with the Geissele Super Duty® Stainless Takedown Pin Set. Precision-machined, corrosion-resistant pins designed for smooth, reliable operation. Available at Terran Gear USA

    Geiselle Super Duty® Stainless Takedown Pin Set

    $18.00
    Geissele Super Duty® Stainless Takedown Pin Set The Geissele Super Duty® Stainless Takedown and Pivot Pins are precision-machined from stainless steel to ensure long-lasting performance and...
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