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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  • Montana Sling Black 1.25in. Gun Sling with Swivel Montana Sling Black 1.25in. Gun Sling with Swivel

    Montana Sling Black 1.25in. Gun Sling with Swivel

    Montana Sling

    $59.95
    Pack your hunting rifle in complete comfort all day long with this premium black leather sling that adjusts from carry position to shoulder-ready in only seconds. Single loop design with an...
    $59.95
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  • Montana Sling Brown 1.25in. Gun Sling with Swivel Montana Sling Brown 1.25in. Gun Sling with Swivel

    Montana Sling Brown 1.25in. Gun Sling with Swivel

    Montana Sling

    $59.95
    Pack your hunting rifle in complete comfort all day long with this premium brown leather sling that adjusts from carry position to shoulder-ready in only seconds. Single loop design with an...
    $59.95
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  • Out of stock
    LMT Defense SOPMOD Stock AR-15/AR-10 L7LA2BAT

    LMT Defense SOPMOD Stock AR-15/AR-10 L7LA2BAT

    LMT Defense

    $211.50
    The LMT Defense SOPMOD Buttstock in Flat Dark Earth/Tan (L7LA2BAT) is the iconic LMT SOPMOD adjustable stock — the preferred buttstock of USSOCOM operators, hence its name. Crafted from durable...
    $211.50
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  • FCD Forward Controls Design Bolt Carrier Group Serrated SBCG-N-S

    FCD Forward Controls Design Bolt Carrier Group Serrated SBCG-N-S

    Forward Controls Design, Inc

    $220.00
    The Forward Controls Design Bolt Carrier Group — Serrated (SBCG-N-S) is FCD's Secure-Staking BCG with nitride finish and serrated texture on the bolt carrier body. The SBCG-N-S (Secure-Staking BCG,...
    $220.00
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  • FCD Forward Controls Design Bolt Carrier Group Dimpled SBCG-N-D

    FCD Forward Controls Design Bolt Carrier Group Dimpled SBCG-N-D

    Forward Controls Design, Inc

    $220.00
    The Forward Controls Design Bolt Carrier Group — Dimpled (SBCG-N-D) is FCD's Secure-Staking BCG with nitride finish and dimpled texture machined into the bolt carrier body. The SBCG-N-D...
    $220.00
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  • STOPBOX USA- Universal Mag Carrier STOPBOX USA- Universal Mag Carrier

    STOPBOX USA- Universal Mag Carrier

    STOPBOX USA

    $34.00
    The STOPBOX USA Universal Mag Carrier (stopbox-magcarrier) is a versatile, compatible magazine carrier designed to organize and store handgun or rifle magazines alongside your STOPBOX firearm storage...
    $34.00
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  • Ruger 10/22 Stripped Aluminum Receiver  VCSCU-0130 Ruger 10/22 Stripped Aluminum Receiver  VCSCU-0130

    Ruger 10/22 Stripped Aluminum Receiver VCSCU-0130

    Ruger

    $65.00
    This is a new Ruger factor stripped aluminum receiver compatible with 10/22 pattern firearms.  Black Stripped Made in the USA Note: These are stripped receivers so they will not come with any...
    $65.00
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  • LMT Defense LMT Defense - MRP-H Quad Rail 12.75" AR10/AR308 Complete Upper Receiver Bundle  BFCLMT-H308P16P

    LMT Defense LMT Defense - MRP-H Quad Rail 12.75" AR10/AR308 Complete Upper Receiver Bundle BFCLMT-H308P16P

    LMT Defense

    $2,399.99
    The LMT Defense MRP-H Quad Rail 12.75" AR10/.308 Complete Upper Receiver Bundle (BFCLMT-H308P16P) is a complete, ready-to-mount LMT AR-10 piston upper receiver assembly combining LMT's MRP-H Quad...
    $2,399.99
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  • VLTOR Receiver Extension 6 Position RE-10/A5SR VLTOR Receiver Extension 6 Position RE-10/A5SR

    VLTOR Receiver Extension 6 Position RE-10/A5SR

    Vltor Weapon Systems

    $56.66
    The VLTOR Receiver Extension 6-Position (RE-10/A5SR) is a specialized receiver extension providing 6-position adjustability for use with the VLTOR A5 buffer system or standard AR-10/SR-25 pattern...
    $56.66
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  • Out of stock
    Remington 870 Super Mag Receiver Assembly 2.75"-3" 12ga w/ Mag Tube Remington 870 Super Mag Receiver Assembly 2.75"-3" 12ga w/ Mag Tube

    Remington 870 Super Mag Receiver Assembly 2.75"-3" 12ga w/ Mag Tube

    Remington

    $100.00
    This is a Remington 870 Super Mag stripped receiver assembly compatible with 2.75” – 3.5” 12ga components. This receiver was removed from factory new firearms and the serial number shown in the above...
    $100.00
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    $100.00
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  • Out of stock
    Remington 870 Magnum Receiver Assembly 2.75"-3" 12ga w/Mag Tube Remington 870 Magnum Receiver Assembly 2.75"-3" 12ga w/Mag Tube

    Remington 870 Magnum Receiver Assembly 2.75"-3" 12ga w/Mag Tube

    Remington

    $75.00
    This is a Remington 870 Magnum stripped receiver assembly compatible with 2.75” – 3” 12ga components. This receiver was removed from factory new firearms and the serial number shown in the above...
    $75.00
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  • Out of stock
    Volquartsen - Mini Mamba LLV for Ruger MK IV 22LR 3" #VC4LLV-0025 Volquartsen - Mini Mamba LLV for Ruger MK IV 22LR 3" #VC4LLV-0025

    Volquartsen - Mini Mamba LLV for Ruger MK IV 22LR 3" #VC4LLV-0025

    Volquartsen

    $502.00
    This is a new Volquartsen Mini Mamba 3” upper receiver compatible with all Ruger Mark IV & Mark IV 22/45 pattern components.  This upper will not ship with a bolt assembly.  This upper has it all for...
    $502.00
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