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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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  • ROSCO 14.5 GVT 5.56 NATO

    ROSCO 14.5 GVT 5.56 NATO

    Rosco Manufacturing

    MSRP: $187.71
    $156.00
    The 14.5" M4 5.56 NATO Bloodline Barrel (Mid-Length). This 14.5" M4 5.56 NATO Mid-Length barrel was designed around the USASOC specs for an Improved Upper Receiver Group with a little bit of the Rosco touch as well. The longer gas system allows for a...
    MSRP: $187.71
    $156.00
    Qty in Cart: 0
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    MSRP: $187.71
    $156.00
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  • ROSCO BL BBL 11.5 5.56 1/7

    ROSCO BL BBL 11.5 5.56 1/7

    Rosco Manufacturing

    MSRP: $192.78
    $138.00
    Bloodline 11.5" M4 5.56 NATO: This Rosco 11.5" M4 5.56 NATO Bloodline Barrel is designed to be the perfect addition to any SBR or Pistol build. ALL NFA RULES APPLY! Rosco 5.56 (NATO) barrels are designed to meet the modern day carbine shooters...
    MSRP: $192.78
    $138.00
    Qty in Cart: 0
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    MSRP: $192.78
    $138.00
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  • ROSCO BL BBL 10.5 5.56 1/7

    ROSCO BL BBL 10.5 5.56 1/7

    Rosco Manufacturing

    MSRP: $185.22
    $133.00
    Bloodline 10.5" M4 5.56 NATO: This Rosco 10.5" M4 5.56 NATO Bloodline Barrel is designed to be the perfect addition to any SBR or Pistol build. ALL NFA RULES APPLY! Rosco 5.56 (NATO) barrels are designed to meet the modern day carbine shooters...
    MSRP: $185.22
    $133.00
    Qty in Cart: 0
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    MSRP: $185.22
    $133.00
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  • RADIAN UPPER 10.5 223 WYLDE ODG

    RADIAN UPPER 10.5 223 WYLDE ODG

    Radian Weapons

    MSRP: $2,152.59
    $1,905.00
    The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...
    MSRP: $2,152.59
    $1,905.00
    Qty in Cart: 0
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    MSRP: $2,152.59
    $1,905.00
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  • RADIAN UPPER 10.5 223 WYLDE FDE

    RADIAN UPPER 10.5 223 WYLDE FDE

    Radian Weapons

    MSRP: $2,152.59
    $1,905.00
    The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...
    MSRP: $2,152.59
    $1,905.00
    Qty in Cart: 0
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    MSRP: $2,152.59
    $1,905.00
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  • RADIAN UPPER 10.5 223 WYLDE BROWN

    RADIAN UPPER 10.5 223 WYLDE BROWN

    Radian Weapons

    MSRP: $2,152.59
    $1,905.00
    The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...
    MSRP: $2,152.59
    $1,905.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,152.59
    $1,905.00
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  • RADIAN UPPER 9 300 BLK BLACK

    RADIAN UPPER 9 300 BLK BLACK

    Radian Weapons

    MSRP: $2,067.84
    $1,830.00
    The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...
    MSRP: $2,067.84
    $1,830.00
    Qty in Cart: 0
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    MSRP: $2,067.84
    $1,830.00
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  • RADIAN UPPER 10.5 223 WYLDE BLACK

    RADIAN UPPER 10.5 223 WYLDE BLACK

    Radian Weapons

    MSRP: $2,152.59
    $1,905.00
    The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...
    MSRP: $2,152.59
    $1,905.00
    Qty in Cart: 0
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    MSRP: $2,152.59
    $1,905.00
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  • PWS MK109 MOD 1-M UPPER 300BLK 9.75

    PWS MK109 MOD 1-M UPPER 300BLK 9.75

    Primary Weapons Systems

    MSRP: $1,186.44
    $1,130.00
    The MK1 MOD 1-M line features the PWS long stroke piston system. Internally, this line offers the tried and true system that PWS owners have grown to know and love. Featuring a free-float MLOK handguard, forward assist controls, and a more true to...
    MSRP: $1,186.44
    $1,130.00
    Qty in Cart: 0
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    MSRP: $1,186.44
    $1,130.00
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  • PWS MK109 MOD 2-M UPPER 300BLK 9.75

    PWS MK109 MOD 2-M UPPER 300BLK 9.75

    Primary Weapons Systems

    MSRP: $1,468.94
    $1,400.00
    The PWS MK1 MOD 2-M line features the PWS long stroke piston system. While the internals remain the same as other PWS lines, the MK1 MOD 2-M offers a variety of features exclusive to this line. Starting with patent pending PicLok technology on the free...
    MSRP: $1,468.94
    $1,400.00
    Qty in Cart: 0
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    MSRP: $1,468.94
    $1,400.00
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  • PWS UXR ELITE CONV KIT .300BLK 14.5

    PWS UXR ELITE CONV KIT .300BLK 14.5

    Primary Weapons Systems

    MSRP: $624.94
    $500.00
    The proprietary UXR, or User XChange Rifle, is the pinnacle of firearm innovation. This revolutionary system offers unmatched modularity and performance. The patent-pending XCHANGE system allows the shooter to quickly convert to alternate calibers on the...
    MSRP: $624.94
    $500.00
    Qty in Cart: 0
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    MSRP: $624.94
    $500.00
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  • ODIN BBL 300 BLK 8 MED PROF BLK

    ODIN BBL 300 BLK 8 MED PROF BLK

    Odin Works

    MSRP: $314.69
    $252.00
    Made from 416R Stainless Steel, this 300 Blackout is hand lapped, has M4 feed ramps and 5/8-24 Threading. Comes with a black nitrided Adjustable Gas Block.MANUFACTURER: Odin WorksMPN: B-300-8-P-TG-BLKMODEL: 0Type of Barrel: ThreadedBarrel Length:...
    MSRP: $314.69
    $252.00
    Qty in Cart: 0
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    MSRP: $314.69
    $252.00
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