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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  • Forward Controls Design - Reinforced Buffer Retainer - For AR Systems - #RBF - 680665827220 - Boss Firearms - BossFirearms.com

    Forward Controls Design - Reinforced Buffer Retainer - For AR Systems - RBF

    Forward Controls Design, Inc

    MSRP: $8.00
    $7.60
    The Forward Controls Design Reinforced Buffer Retainer (RBF) is FCD's upgraded replacement for the factory AR-15 buffer retainer. The standard mil-spec buffer retainer is a known weak point in the...
    MSRP: $8.00
    $7.60
    Qty in Cart: 0
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    MSRP: $8.00
    $7.60
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  • Forward Controls Design – SOTAR Cam Pin - Fits AR15/M16 Systems - #SCP-NP3 - 686162347858 - Boss Firearms - Bossfirearms.com

    Forward Controls Design - Sotar Cam Pin - Fits AR15/M16 Systems- SCP-NP3

    Forward Controls Design, Inc

    MSRP: $17.00
    $16.15
    The Forward Controls Design Sotar Cam Pin — NP3 Finish (SCP-NP3) is FCD's premium replacement bolt carrier group cam pin for AR-15/M16 platforms, finished in Robar's NP3 electroless nickel-PTFE...
    MSRP: $17.00
    $16.15
    Qty in Cart: 0
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    MSRP: $17.00
    $16.15
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  • Forward Controls Design - Billet 7075 Ejection Port Cover - #FCD-EPC - 686162347889 - Boss Firearms - BossFirearms.com Forward Controls Design - Billet 7075 Ejection Port Cover - #FCD-EPC - 686162347889 - Boss Firearms - BossFirearms.com

    Forward Controls Design - Billet 7075 Ejection Port Cover - FCD-EPC

    Forward Controls Design, Inc

    MSRP: $50.00
    $47.50
    The Forward Controls Design Billet 7075 Ejection Port Cover (FCD-EPC) is a precision-machined billet aluminum replacement for the standard stamped steel AR-15 ejection port dust cover. FCD machines...
    MSRP: $50.00
    $47.50
    Qty in Cart: 0
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    MSRP: $50.00
    $47.50
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  • Out of stock
    On Sale
    Forward Controls Design -  SIG MCX Ambidextrous Charging Handle - Black - #ACF-MCX - 795847524979 - Boss Firearms - BossFirearms.com

    Forward Controls Design - SIG MCX Ambidextrous Charging Handle - Black - #ACF-MCX

    Forward Controls Design, Inc

    MSRP: $120.00
    Now: $102.00
    Was: $114.00
    ACF-MCX is closely based on the AR15/M16 version of the original ACF. Like the factory SIG MCX charging handle, MCX-ACF has two latches. Design objectives: 1. A stronger, more durable ambidextrous...
    MSRP: $120.00
    Now: $102.00
    Was: $114.00
    Qty in Cart: 0
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    MSRP: $120.00
    Now: $102.00
    Was: $114.00
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  • Out of stock
    On Sale
    Forward Controls Design - Trijicon RMR & SRO Optics Platform - GLOCK 17 & 19 - #OPF-G-RMR - 686162347902 - Boss Firearms - BossFirearms.com Forward Controls Design - Trijicon RMR & SRO Optics Platform - GLOCK 17 & 19 - #OPF-G-RMR - 686162347902 - Boss Firearms - BossFirearms.com

    Forward Controls Design - Trijicon RMR & SRO Optics Platform - GLOCK 17 & 19 - #OPF-G-RMR

    Forward Controls Design, Inc

    MSRP: $72.50
    Now: $68.87
    Was: $76.00
    OPF-G, RMR (Optics Platform, GLOCK, for RMR) is a GLOCK MOS Adapter Set 01 and Set 02 compatible plate for mounting Trijicon RMR or SRO on GLOCK Gen 4 and Gen 5 slides, G17, G19, G20, G21 G34, G35,...
    MSRP: $72.50
    Now: $68.87
    Was: $76.00
    Qty in Cart: 0
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    MSRP: $72.50
    Now: $68.87
    Was: $76.00
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  • Forward Controls Design - Aimpoint Acro Glock Optics Platform - #OPF-G-ACRO - 686162347971 - Boss Firearms - BossFirearms.com Forward Controls Design - Aimpoint Acro Glock Optics Platform - #OPF-G-ACRO - 686162347971 - Boss Firearms - BossFirearms.com

    Forward Controls Design - Aimpoint Acro Glock Optics Platform - OPF-G-ACRO

    Forward Controls Design, Inc

    MSRP: $80.00
    $76.00
    The Forward Controls Design Aimpoint ACRO Glock Optics Platform (OPF-G-ACRO) is FCD's precision-machined optic mounting plate for the Aimpoint ACRO P-1/P-2 red dot sight on Glock pistols (full-size...
    MSRP: $80.00
    $76.00
    Qty in Cart: 0
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    MSRP: $80.00
    $76.00
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  • Forward Controls Design - AR Enhanced Mag Release Button - Dimpled - #EMR-H-AA -  682157948727 - Boss Firearms - BossFirearms.com Forward Controls Design - AR Enhanced Mag Release Button - Dimpled - #EMR-H-AA -  682157948727 - Boss Firearms - BossFirearms.com

    Forward Controls Design - AR Enhanced Mag Release Button - Dimpled - EMR-H-AA

    Forward Controls Design, Inc

    MSRP: $17.00
    $16.15
    The Forward Controls Design AR Enhanced Magazine Release Button — Dimpled (EMR-H-AA) is FCD's heavy-profile, dimpled-texture enhanced magazine release button for standard AR-15/M16 pattern lower...
    MSRP: $17.00
    $16.15
    Qty in Cart: 0
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    MSRP: $17.00
    $16.15
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  • Forward Controls Design - SIG MCX Enhanced Mag Release Button - #EMR-MCX - 796520450080 - Boss Firearms - BossFirearms.com Forward Controls Design - SIG MCX Enhanced Mag Release Button - #EMR-MCX - 796520450080 - Boss Firearms - BossFirearms.com

    Forward Controls Design - SIG MCX Enhanced Mag Release Button - EMR-MCX

    Forward Controls Design, Inc

    MSRP: $30.00
    $28.50
    The Forward Controls Design SIG MCX Enhanced Magazine Release Button (EMR-MCX) is FCD's drop-in enhanced magazine release designed specifically for the SIG Sauer MCX and MPX rifle platforms. The...
    MSRP: $30.00
    $28.50
    Qty in Cart: 0
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    MSRP: $30.00
    $28.50
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  • Forward Controls Design – 50° Safety Selector – Ambidextrous - #ASF-50Q - Bossfirearms.com Forward Controls Design – 50° Safety Selector – Ambidextrous - #ASF-50Q - 683828757501 - Bossfirearms.com

    Forward Controls Design - 50° Ambidextrous Safety Selector - ASF-50Q

    Forward Controls Design, Inc

    MSRP: $95.00
    $90.25
    The Forward Controls Design ASF-50Q Ambidextrous Safety Selector is a 50-degree short-throw semi-auto safety selector with FCD's distinctive offset "Q" levers — engineered from the ground up as a...
    MSRP: $95.00
    $90.25
    Qty in Cart: 0
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    MSRP: $95.00
    $90.25
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  • Out of stock
    LMT Defense - Front Pivot Pin - .308 - #LM308A3 - Boss Firearms

    LMT Defense - Front Pivot Pin - .308 - LM308A3

    LMT Defense

    $14.22
    The LMT Defense Front Pivot Pin for .308/AR-10 (LM308A3) is a precision-machined OEM replacement front pivot pin designed for LMT's large-frame .308/7.62x51mm MARS-H and MWS AR-10 lower receivers...
    $14.22
    Qty in Cart: 0
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    $14.22
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  • Out of stock
    On Sale
    Knight's Armament - MLOK QD Low Profile Mount - #113879 - 819064017790 - Boss Firearms - BossFirearms.com

    Knight's Armament - MLOK QD Low Profile Mount - #113879

    Knights Armament Company

    Now: $69.13
    Was: $72.77
    Knights Armament QD socket mount to move sling rearward on the handguard while maintaining the lowest possible profile.  
    Now: $69.13
    Was: $72.77
    Qty in Cart: 0
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    Now: $69.13
    Was: $72.77
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  • LMT Defense - Flat Top Upper Receiver - #L7D1A - 815415017068 - Boss Firearms

    LMT Defense - Flat Top Upper Receiver - L7D1A

    LMT Defense

    $211.50
    The LMT Defense Flat Top Upper Receiver (L7D1A) is a mil-spec AR-15 flat top upper receiver machined from forged 7075-T6 aluminum with a Type III hard anodized finish. Featuring a standard flat top...
    $211.50
    Qty in Cart: 0
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    $211.50
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