Gun Parts

Gun Parts

Welcome to the Gun Parts superstore at Boss Firearms Company, LLC. Whether you are undertaking a custom precision build, performing routine armorer maintenance, or upgrading an existing platform, we stock the high-performance components you need. As an authorized dealer for premium OEM and aftermarket manufacturers, we provide everything from stripped receivers and match-grade triggers to enhanced bolt carrier groups (BCGs) and duty-ready barrels for rifles, handguns, and shotguns.

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  • FCD Forward Controls Design Ambidextrous Charging Handle LPVO #ACF-L FCD Forward Controls Design Ambidextrous Charging Handle LPVO #ACF-L
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    FCD Forward Controls Design Ambidextrous Charging Handle LPVO #ACF-L

    Forward Controls Design, Inc

    $118.75
     This is a new FCD (Forward Controls Design) Ambidextrous Charging Handle. ACF-L is an AR15/M16 ambidextrous charging handle based on our ACF.  Whereas with the  ACF, we kept the T handle nearly the...
    $118.75
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  • Magpul Industries M-LOK Aluminum 3 Slot Rail Section MAG580-BLK
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    Magpul Industries M-LOK Aluminum 3 Slot Rail Section MAG580-BLK

    Magpul Industries

    $18.00
    The Magpul M-LOK Aluminum Rail Section — 3 Slot (MAG580-BLK) is Magpul's precision-machined aluminum Picatinny rail section for M-LOK compatible handguards. The 3-slot rail section installs directly...
    $18.00
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  • Dead Air Armament Key Mount Muzzle Brake 45 Caliber 5/8x24 DA161
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    Dead Air Armament Key Mount Muzzle Brake 45 Caliber 5/8x24 DA161

    Dead Air Armament

    $75.00
    The Dead Air Key Mount Muzzle Brake (DA161) in .45 caliber with 5/8x24 thread pitch is a precision-machined muzzle device that combines functional recoil reduction with Dead Air's KeyMo quick-detach...
    $75.00
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  • Dead Air Armament KeyMicro Flash Hider 5/8x24 9mm DA116
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    Dead Air Armament KeyMicro Flash Hider 5/8x24 9mm DA116

    Dead Air Armament

    $75.00
    The Dead Air KeyMicro Flash Hider (DA116) with 5/8x24 thread pitch is a compact muzzle device purpose-built for 9mm pistol-caliber carbines and suppressor hosts. Designed as the mounting adapter for...
    $75.00
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  • Dead Air Armament Xeno Flash Hider 5/8x24 DA122 Dead Air Armament Xeno Flash Hider 5/8x24 DA122
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    Dead Air Armament Xeno Flash Hider 5/8x24 DA122

    Dead Air Armament

    $75.00
    The Dead Air Xeno Flash Hider (DA122) with 5/8x24 thread pitch is a precision-machined muzzle device designed as the foundation of Dead Air's Xeno suppressor mounting system. The Xeno Flash Hider...
    $75.00
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  • Heckler & Koch Three Position Retractable Buttstock 227901 Heckler & Koch Three Position Retractable Buttstock 227901
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    Heckler & Koch Three Position Retractable Buttstock 227901

    Heckler & Koch

    $732.50
    The Heckler & Koch Three-Position Retractable Buttstock (HK PN: 227901) is HK's genuine factory three-position adjustable/retractable buttstock for HK416, MR556, MR762, and compatible AR-pattern...
    $732.50
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    HK Heckler & Koch Fixed Side Folding Stock for SP5's 261249 HK Heckler & Koch Fixed Side Folding Stock for SP5's 261249
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    HK Heckler & Koch Fixed Side Folding Stock for SP5's 261249

    Heckler & Koch

    $320.00
    The Heckler & Koch Fixed Side Folding Stock for SP5 (HK PN: 261249) is the genuine HK factory fixed-position side folding stock for the SP5 and SP5K 9mm semi-automatic platforms. This folding stock...
    $320.00
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    $320.00
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  • LanTac USA M-Spec Carbine Gas Tube 01-MSPEC-GT-CRBN
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    LanTac USA M-Spec Carbine Gas Tube 01-MSPEC-GT-CRBN

    LanTac

    $18.99
    This is a new LanTac USA LLC M-Spec Carbine Gas Tube. It fits AR 15 with carbing length- gas system, comes complete with gas tube roll pin, is laser engraved, and manufactured from 306 stainless...
    $18.99
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    LMT Defense - Purchase the 16" .308 Lightweight Stainless Steel Barrel LM308B116S get the LMT Torque Wrench LTW for FREE
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    LMT Defense - Purchase the 16" .308 Lightweight Stainless Steel Barrel LM308B116S get the LMT Torque Wrench LTW for FREE

    LMT Defense

    $852.30
    LMT BARREL: The Lewis Machine & Tool MWS rifle systems come with a wealth of enhancements like a monolithic handguard and upper receiver and a chrome lined barrel with a durable lock-up system. Now...
    $852.30
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    LMT Defense - Purchase the 16" .308 Barrel LM308B116PS get the LMT Torque Wrench LTW for FREE
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    LMT Defense - Purchase the 16" .308 Barrel LM308B116PS get the LMT Torque Wrench LTW for FREE

    LMT Defense

    $842.40
    Take advantage of this exclusive Boss Firearms bundle and get the LMT Defense 16" .308 Lightweight Chrome Lined Piston Barrel (LM308B116PS) together with the LMT Defense Torque Wrench (LTW) for FREE...
    $842.40
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    LMT Defense - Purchase the 7.62 NATO 13.5" Barrel #LM308B413 get the LMT Torque Wrench #LTW for FREE
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    LMT Defense - Purchase the 7.62 NATO 13.5" Barrel #LM308B413 get the LMT Torque Wrench #LTW for FREE

    LMT Defense

    $627.30
    LMT BARREL: LMT® 13.5″ chrome lined 1:10″ RH twist 7.62×51 barrel for MWS upper receivers. Includes low profile gas block, straight gas tube, A2 flash hider.
    $627.30
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    LMT Defense - Purchase the 7.62x51mm 16" Chrome Lined Barrel Assembly LM308B216 get the LMT Torque Wrench LTW for FREE
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    LMT Defense - Purchase the 7.62x51mm 16" Chrome Lined Barrel Assembly LM308B216 get the LMT Torque Wrench LTW for FREE

    LMT Defense

    $627.30
    *Discounts do not apply* Take advantage of this exclusive Boss Firearms bundle and get the LMT Defense 7.62x51mm 16" Chrome Lined MWS Barrel Assembly (LM308B216) together with the LMT Defense Torque...
    $627.30
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