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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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  • GGP BILLET LOWER RCVR

    GGP BILLET LOWER RCVR

    Grey Ghost Precision

    MSRP: $170.65
    $121.89
    The MKII version of the GGP-S Series brings a new level of customizability never before seen in our rifle receivers. Not only can you build your own version of the Heavy or Light rifle, but you can use your favorite aftermarket parts to complete the...
    MSRP: $170.65
    $121.89
    Qty in Cart: 0
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    MSRP: $170.65
    $121.89
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  • FORTIS LICENSE GEN II AR15 SET AMBI

    FORTIS LICENSE GEN II AR15 SET AMBI

    Fortis Manufacturing Inc.

    MSRP: $516.50
    $413.20
    Introducing the Fortis License Lower Receiver. Made from 7075 T6 billet aluminum. The GEN II has all the same features from the first edition, but with added integrated carbon fiber.MANUFACTURER: Fortis Manufacturing, Inc.MPN: LM-7075-GEN2-AMODEL:...
    MSRP: $516.50
    $413.20
    Qty in Cart: 0
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    MSRP: $516.50
    $413.20
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  • FORTIS LICENSE GEN II AR15 LWR STD

    FORTIS LICENSE GEN II AR15 LWR STD

    Fortis Manufacturing Inc.

    MSRP: $279.00
    $223.20
    Introducing the Fortis License Lower Receiver. Made from 7075 T6 billet aluminum. The GEN II has all the same features from the first edition, but with added integrated carbon fiber.MANUFACTURER: Fortis Manufacturing, Inc.MPN: L-7075-GEN2-SMODEL: License...
    MSRP: $279.00
    $223.20
    Qty in Cart: 0
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    MSRP: $279.00
    $223.20
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  • FORTIS LICENSE GEN II AR15 LWR AMBI

    FORTIS LICENSE GEN II AR15 LWR AMBI

    Fortis Manufacturing Inc.

    MSRP: $296.81
    $237.45
    Introducing the Fortis License Lower Receiver. Made from 7075 T6 billet aluminum. The GEN II has all the same features from the first edition, but with added integrated carbon fiber.MANUFACTURER: Fortis Manufacturing, Inc.MPN: L-7075-GEN2-AMODEL: License...
    MSRP: $296.81
    $237.45
    Qty in Cart: 0
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    MSRP: $296.81
    $237.45
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  • FMK AR15 POLYMER LOWER RECEIVER BB

    FMK AR15 POLYMER LOWER RECEIVER BB

    FMK Firearms

    MSRP: $44.79
    $31.99
    Manufactured in the USA of a high impact proprietary composite polymer. This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight. The Ar1 eXtreme is by far the strongest composite polymer lower on the...
    MSRP: $44.79
    $31.99
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    MSRP: $44.79
    $31.99
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  • FMK AR15 POLYMER LOWER RECEIVER BLK

    FMK AR15 POLYMER LOWER RECEIVER BLK

    FMK Firearms

    MSRP: $44.79
    $31.99
    This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight at only 4.3oz. The AR1 extreme is by far the strongest composite polymer lower on the market today.MANUFACTURER: FMK FirearmsMPN: FMKGAR1EMODEL:...
    MSRP: $44.79
    $31.99
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    MSRP: $44.79
    $31.99
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  • FMK AR15 POLYMER LOWER RECEIVER FDE

    FMK AR15 POLYMER LOWER RECEIVER FDE

    FMK Firearms

    MSRP: $44.79
    $31.99
    Manufactured in the USA of a high impact proprietary composite polymer. This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight. The Ar1 eXtreme is by far the strongest composite polymer lower on the...
    MSRP: $44.79
    $31.99
    Qty in Cart: 0
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    MSRP: $44.79
    $31.99
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  • FAXON RECEIVER KIT FOR 10/22 BLK

    FAXON RECEIVER KIT FOR 10/22 BLK

    Faxon Firearms

    MSRP: $238.28
    $159.56
    The Faxon 10/22 Receiver Kit provides a quick and easy upgrade of your Ruger 10/22, or serves as the cornerstone for your next 10/22 rifle build. Faxon 10/22 Receivers are compatible with all Ruger OEM 10/22 non-takedown components, all Faxon Rimfire...
    MSRP: $238.28
    $159.56
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    MSRP: $238.28
    $159.56
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  • Out of stock
    DBST STAR-15 STRIPPED LOWER AR15

    DBST STAR-15 STRIPPED LOWER AR15

    Doublestar Corp.

    MSRP: $132.99
    $94.99
    Doublestar Corp. makes high quality firearm components for the AR Platform. This stripped lower is the perfect base for your next custom AR build.MANUFACTURER: Doublestar Corp.MPN: DSCL101MODEL: Stripped LowerAction: Semi-automaticFinish:...
    MSRP: $132.99
    $94.99
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    MSRP: $132.99
    $94.99
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  • DBF DB15 LOWER RCVR MULTI CAL BLK

    DBF DB15 LOWER RCVR MULTI CAL BLK

    Diamondback Firearms

    MSRP: $91.00
    $65.00
    Diamondback Firearms is proud to announce its line of DB15 rifles made entirely in the USA! Starting with the tried-and-true, U.S. Military-proven gas-impingement system and using only the highest quality components machined in Diamondback's CNC facility...
    MSRP: $91.00
    $65.00
    Qty in Cart: 0
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    MSRP: $91.00
    $65.00
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  • CMMG LOWER MK4/AR15 BLK

    CMMG LOWER MK4/AR15 BLK

    CMMG

    MSRP: $160.26
    $110.55
    Precision machined from forged 7075 T6 aluminum, the CMMG Mk4 AR-15 stripped lower receiver is the quality mil-spec lower ready to be the foundation for your next build. The Mk4 stripped lower comes standard in a Armor Black finish and can be assembled...
    MSRP: $160.26
    $110.55
    Qty in Cart: 0
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    MSRP: $160.26
    $110.55
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  • CMMG LOWER ASSY MK3 308WN BLK

    CMMG LOWER ASSY MK3 308WN BLK

    CMMG

    MSRP: $421.86
    $337.49
    Based off the popular high pattern LR-308, the tried-and-true Mk3 line is designed to handle larger calibers unsuitable for the AR-15 platform like .308 Win or 6.5 Creedmoor.MANUFACTURER: CMMGMPN: 38CA2AC-ABMODEL: MK3Action: Semi-automaticFinish:...
    MSRP: $421.86
    $337.49
    Qty in Cart: 0
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    MSRP: $421.86
    $337.49
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