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AR15 Parts

AR15 Parts

Gas & Brass Armory is your trusted source for AR-15 parts in Brandon, FL. Whether you're upgrading your current rifle or building a custom AR from the ground up, we stock high-quality components from top manufacturers like Aero Precision, Magpul, Radian Weapons, BCM, Geissele, and more. Shop complete uppers, stripped lowers, triggers, handguards, buffer kits, barrels, and everything you need for your next AR build. Our expert staff is here to help you build it right the first time.

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    GEISSELE SUPER GAS BLOCK

    GEISSELE SUPER GAS BLOCK

    Geissele Automatics

    MSRP: $114.24
    $82.00
    The Geissele Super Gas Block is a low profile gas block, designed to fit under most free floating handguards. Precision investment cast from 17-4 precipitation hardening stainless steel, the gas block provides corrosion resistance and strength to...
    MSRP: $114.24
    $82.00
    Qty in Cart: 0
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    MSRP: $114.24
    $82.00
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    FORTIS MAG CATCH & BUTTON COMBO BLK

    FORTIS MAG CATCH & BUTTON COMBO BLK

    Fortis Manufacturing Inc.

    MSRP: $33.18
    $24.00
    The Fortis Billet Mag Catch & Button is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC machined from a solid piece of 6061-T6 aircraft grade...
    MSRP: $33.18
    $24.00
    Qty in Cart: 0
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    MSRP: $33.18
    $24.00
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    FORTIS SS FIFTY AMBI SFTY SLCTR BLK

    FORTIS SS FIFTY AMBI SFTY SLCTR BLK

    Fortis Manufacturing Inc.

    MSRP: $53.13
    $38.00
    High quality components and precise manufacturing make Fortis parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.MANUFACTURER: Fortis...
    MSRP: $53.13
    $38.00
    Qty in Cart: 0
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    MSRP: $53.13
    $38.00
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    FORTIS K2 ENHANCD AR15 END PLATE BLK

    FORTIS K2 ENHANCD AR15 END PLATE BLK

    Fortis Manufacturing Inc.

    MSRP: $59.78
    $43.00
    When designing their new Lightweight Enhanced (LE) Castle Nut & End Plate System, Fortis came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With two lockdown systems (K1 & K2), Fortis has engineered a...
    MSRP: $59.78
    $43.00
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    MSRP: $59.78
    $43.00
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    FORTIS SLS FIFTY AMBI SFTY SLCTR FDE

    FORTIS SLS FIFTY AMBI SFTY SLCTR FDE

    Fortis Manufacturing Inc.

    MSRP: $53.13
    $38.00
    When designing the new Fortis Super Lean Sport (SLS) FIFTY, Fortis made sure their brand's innovation, intent and quality were evident in every aspect of the design. While most AR safety selectors in the market today rely on standard socket/torx screws,...
    MSRP: $53.13
    $38.00
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    MSRP: $53.13
    $38.00
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    FORTIS K2 ENHANCD AR15 END PLATE FDE

    FORTIS K2 ENHANCD AR15 END PLATE FDE

    Fortis Manufacturing Inc.

    MSRP: $59.78
    $43.00
    When designing their new Lightweight Enhanced (LE) Castle Nut & End Plate System, Fortis came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With two lockdown systems (K1 & K2), Fortis has engineered a...
    MSRP: $59.78
    $43.00
    Qty in Cart: 0
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    MSRP: $59.78
    $43.00
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    FORTIS END PLATE & CASTLE NUT

    FORTIS END PLATE & CASTLE NUT

    Fortis Manufacturing Inc.

    MSRP: $32.84
    $20.00
    The Fortis Standard Castle Nut is manufactured from a solid piece of billet aircraft grade aluminum that offers a significant weight reduction to your castle nut. If you're trying to save ounces, this is a great way, but without sacrificing durability...
    MSRP: $32.84
    $20.00
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    MSRP: $32.84
    $20.00
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    FORTIS BILLET DUST COVER CF FDE

    FORTIS BILLET DUST COVER CF FDE

    Fortis Manufacturing Inc.

    MSRP: $39.83
    $29.00
    The Fortis Billet Dust Cover is manufactured from a solid piece of aircraft grade aluminum. This ensures overall durability and reliability vs other polymer versions. Easy to install and upgrade your existing ejection port dust cover on your .223/556...
    MSRP: $39.83
    $29.00
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    MSRP: $39.83
    $29.00
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    FORTIS BILLET DUST COVER STD BLACK

    FORTIS BILLET DUST COVER STD BLACK

    Fortis Manufacturing Inc.

    MSRP: $33.18
    $24.00
    The Fortis Billet Dust Cover is manufactured from a solid piece of aircraft grade aluminum. This ensures overall durability and reliability vs other polymer versions. Easy to install and upgrade your existing ejection port dust cover on your .223/556...
    MSRP: $33.18
    $24.00
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    MSRP: $33.18
    $24.00
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  • ERGO LOW PROFILE ADJ GAS BLOCK .750

    ERGO LOW PROFILE ADJ GAS BLOCK .750

    Ergo Grip

    MSRP: $60.55
    $0.00
    The .750" Low-Pro Adjustable Gas Block is constructed of 4140 chromoly steel and will fit under Superlite Rail Systems. Adjustments are achieved with the set-screw allowing you to fine tune the amount of gas allowed through the system for load specific...
    MSRP: $60.55
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  • DBST SUPERLITE GAS BLOCK .750

    DBST SUPERLITE GAS BLOCK .750

    Doublestar Corp.

    MSRP: $47.59
    $0.00
    The Superlite Same Plane Gas Block is machined from rugged 6061 T6 aircraft aluminum and Type III hard coat anodized to match the finish of most AR style uppers. The 1913 picatinny rail matches the height of a standard mil spec flattop upper receiver...
    MSRP: $47.59
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    DBST LPK 556 BLK

    DBST LPK 556 BLK

    Doublestar Corp.

    MSRP: $100.79
    $72.00
    Double Star uses only the best parts to make their lower parts kits. The fire control group is made from mil spec heat treated 8620 steel and finished on all touch points for a smooth, crisp trigger pull with minimal creep or drag. This AR15 lower parts...
    MSRP: $100.79
    $72.00
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    MSRP: $100.79
    $72.00
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