AR-15 Parts

AR-15 Parts

Shop our extensive inventory of AR-15 parts and modern sporting rifle (MSR) components. From fully assembled MIL-SPEC upper receivers and enhanced lower parts kits to free-float M-LOK handguards and ambidextrous controls, we carry the critical components required for duty, defense, and custom builds.

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  • VLTOR - A5 Buffer - 3.80oz to 6.83oz - #A5H - Boss Firearms - BossFirearms.com VLTOR - A5 Buffer - 3.80oz to 6.83oz - #A5H - Boss Firearms - BossFirearms.com

    VLTOR - A5 BUFFER - 3.80 TO 6.83OZ - A5H

    Vltor Weapon Systems

    $44.06 - $148.46
    The VLTOR A5 Buffer (A5H) is the critical component of VLTOR's A5 buffer system, a drop-in upgrade that replaces the standard mil-spec carbine buffer and spring with a longer, heavier buffer...
    $44.06 - $148.46
    Qty in Cart: 0
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    $44.06 - $148.46
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  • Out of stock
    VLTOR - AR15 Charging Handle - 5.56 - VCH-AR15 - Boss Firearms - BossFirearms.com VLTOR - AR15 Charging Handle - 5.56 - VCH-AR15 - Boss Firearms - BossFirearms.com

    VLTOR - AR15 Charging Handle - 5.56 - #VCH

    Vltor Weapon Systems

    MSRP: $65.95 - $105.95
    $64.76 - $98.06
    After a years-long stint in legal and logistical purgatory, the best-selling charging handle of the past decade has made its return. Previously licensed and distributed by BCM as the original...
    MSRP: $65.95 - $105.95
    $64.76 - $98.06
    Qty in Cart: 0
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    MSRP: $65.95 - $105.95
    $64.76 - $98.06
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  • Out of stock
    On Sale
    Q - Fix 16" Barrel Assembly - 8.6 BLK - #ACC-FIX-BARREL-8.6-16IN - 850035705186 - Boss Firearms - BossFirearms.com

    Q LLC - Fix 16" Barrel Assembly - 8.6 BLK - #ACC-FIX-BARREL-8.6-16IN

    Q LLC

    MSRP: $515.00
    Now: $459.00
    Was: $515.00
    The modular nature of the FIX rifle allows the operator to exchange calibers and barrel lengths without the need for a gunsmith. All of Q, LLC's FIX Barrels are made from high-strength, lightweight...
    MSRP: $515.00
    Now: $459.00
    Was: $515.00
    Qty in Cart: 0
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    MSRP: $515.00
    Now: $459.00
    Was: $515.00
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  • Out of stock
    Knight's Armament - 8-Rib Rail Section Kit - #30412 - Boss Firearms - BossFirearms.com

    Knight's Armament - 8-Rib Rail Section Kit - #30412

    Knights Armament Company

    $33.31 - $40.10
    The KAC URX 3.1 Picatinny Rail Section attaches directly to a URX III or 3.1 modular handguard via a hex head screw. It allows the user to install any number of tactical accessories to the forend if...
    $33.31 - $40.10
    Qty in Cart: 0
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    $33.31 - $40.10
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  • Out of stock
    On Sale
    Q - Cherry Bomb Muzzle Brake - 8.6 Blackout - #CB-M18-1-5 - Boss Firearms - BossFirearms.com

    Q LLC - Cherry Bomb Muzzle Brake - 8.6 Blackout - #CB-M18-1-5

    Q LLC

    MSRP: $100.00
    Now: $90.00
    Was: $100.00
    Q LLC Cherry Bomb muzzle brake chambered in 8.6 Blackout. This is a Quickie Fast-Attach muzzle brake compatible with the THUNDER CHICKEN and trash PANDA silencers by Q.  It features our taper mount...
    MSRP: $100.00
    Now: $90.00
    Was: $100.00
    Qty in Cart: 0
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    MSRP: $100.00
    Now: $90.00
    Was: $100.00
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  • LMT Defense - 10.5" Chrome Lined MRP .300 Blackout Barrel Assembly - #L7BH1B -  815415013749 - Boss Firearms - BossFirearms.com

    LMT Defense - 10.5" Chrome Lined MRP .300 Blackout Barrel Assembly - R-L7BH1B

    LMT Defense

    $554.40
    The LMT Defense 10.5" .300 Blackout Chrome Lined MRP Barrel Assembly (R-L7BH1B) is purpose-built for suppressed or subsonic shooting in a compact SBR package. This 10.5-inch chrome lined .300...
    $554.40
    Qty in Cart: 0
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    $554.40
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  • Forward Controls Design - 6310RF 5/8 x 24 Flash Suppressor / Compensator - #6310RF Forward Controls Design - 6310RF 5/8 x 24 Flash Suppressor / Compensator - #6310RF

    Forward Controls Design - 6310RF 5/8 x 24 Flash Suppressor / Compensator - 6310RF

    Forward Controls Design, Inc

    MSRP: $90.00
    $85.50
    The Forward Controls Design 6310RF Flash Suppressor / Plan B Mount — 5/8x24 (6310RF) is FCD's premium 3-prong flash hider and Plan B/Atlas compatible suppressor mount for .308/7.62x51mm rifles with...
    MSRP: $90.00
    $85.50
    Qty in Cart: 0
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    MSRP: $90.00
    $85.50
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  • Forward Controls Design - Select Fire Short Throw to Semi Safety Selector - #ASF-SF-50Q Forward Controls Design - Select Fire Short Throw to Semi Safety Selector - #ASF-SF-50Q

    Forward Controls Design - Select Fire Short Throw to Semi Safety Selector - ASF-SF-50Q

    Forward Controls Design, Inc

    MSRP: $100.00
    $95.00
    The Forward Controls Design Select-Fire Short Throw to Semi Safety Selector (ASF-SF) is FCD's specialized selector for law enforcement and military personnel operating select-fire AR-15/M16 platforms...
    MSRP: $100.00
    $95.00
    Qty in Cart: 0
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    MSRP: $100.00
    $95.00
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  • Forward Controls Design - 308 Ambidextrous Charging Handle Black - ACF-308 - 686162348053 - Boss Firearms - BossFirearms.com Forward Controls Design - 308 Ambidextrous Charging Handle Black - ACF-308 - 686162348053 - Boss Firearms - BossFirearms.com

    Forward Controls Design - 308 Ambidextrous Charging Handle Black - ACF-308

    Forward Controls Design, Inc

    MSRP: $125.00
    $118.75
    The Forward Controls Design .308/7.62 Ambidextrous Charging Handle — Black (ACF-308) is FCD's duty-grade ambidextrous charging handle designed for .308/7.62x51mm large-frame AR-10/SR-25 pattern...
    MSRP: $125.00
    $118.75
    Qty in Cart: 0
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    MSRP: $125.00
    $118.75
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  • Forward Controls Design - Panel Cable Management - PCM - Boss Firearms - BossFirearms.com Forward Controls Design - Panel Cable Management - PCM - Boss Firearms - BossFirearms.com

    Forward Controls Design - Panel Cable Management - PCM

    Forward Controls Design, Inc

    MSRP: $30.00 - $55.00
    $28.50 - $52.25
    The Forward Controls Design Panel Cable Management (PCM) is FCD's lightweight M-LOK cable management panel for routing weapon light, pressure switch, and IR laser cables cleanly along the handguard...
    MSRP: $30.00 - $55.00
    $28.50 - $52.25
    Qty in Cart: 0
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    MSRP: $30.00 - $55.00
    $28.50 - $52.25
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  • Out of stock
    Forward Controls Design - VLTOR A5 Compatible Receiver Extension - RE5F-Cerakote BB - 796520450066 - Boss Firearms - BossFirearms.com

    Forward Controls Design - VLTOR A5 Compatible Receiver Extension - RE5F-Cerakote BB

    Forward Controls Design, Inc

    MSRP: $78.00
    $74.10
    The Forward Controls Design VLTOR A5 Compatible Receiver Extension (RE5F-Cerakote BB) is FCD's enhanced carbine receiver extension (buffer tube) compatible with the VLTOR A5 buffer and spring system...
    MSRP: $78.00
    $74.10
    Qty in Cart: 0
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    MSRP: $78.00
    $74.10
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  • Out of stock
    On Sale
    Forward Controls Design - VLTOR A5 Compatible Receiver Extension - RE5F-Cerakote ODG - 796520450059 - Boss Firearms - BossFirearms.com

    Forward Controls Design - VLTOR A5 Compatible Receiver Extension - #RE5F-Cerakote ODG

    Forward Controls Design, Inc

    MSRP: $78.00
    Now: $66.30
    Was: $78.00
    RE5F is a 9 position 308 AR compatible receiver extension (RE), it is also compatible with Vltor's splendid A5.  RE5F is a collaboration with SOLGW, and is identical to Sons of Liberty Gunworks Loyal...
    MSRP: $78.00
    Now: $66.30
    Was: $78.00
    Qty in Cart: 0
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    MSRP: $78.00
    Now: $66.30
    Was: $78.00
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