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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    On Sale
    LMT Defense - DMR Buttstock - DMR308T - 815415016528 - Boss Firearms - BossFirearms.com LMT Defense - DMR Buttstock - DMR308T - 815415016528 - Boss Firearms - BossFirearms.com

    LMT Defense - DMR Buttstock - DMR308T

    LMT Defense

    Now: $391.50
    Was: $403.65
    LMT Defense designated Marksman Rifle buttstock. Designed for .308 caliber rifles with carbine extension tubes. The DMR stock has comb height and length of pull adjustments for fine tuning of the...
    Now: $391.50
    Was: $403.65
    Qty in Cart: 0
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    Now: $391.50
    Was: $403.65
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  • LMT Defense - Front & Rear Backup Flip Sights - Fits 5.56 / .308 - #L8BUIST - Boss Firearms - BossFirearms.com

    LMT Defense - 7.62/5.56 Flip-Up Battle Sight Set - L8BUIST

    LMT Defense

    MSRP: $250.00
    $231.75
    The LMT Defense 7.62/5.56 Flip-Up Battle Sight Set (L8BUIST) is the complete BUIS (Backup Iron Sight) solution for any AR-15 or AR-10 platform using a primary red dot or variable power optic. The set...
    MSRP: $250.00
    $231.75
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    MSRP: $250.00
    $231.75
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  • LMT Defense - MWS .308 M-LOK Upper Receiver - 15.3" - LM308BML4A - 815415017051 - Boss Firearms - BossFirearms.com LMT Defense - MWS .308 M-LOK Upper Receiver - 15.3" - LM308BML4A - 815415017051 - Boss Firearms - BossFirearms.com

    LMT Defense - MWS .308 M-LOK Upper Receiver - 15.3" - LM308BML4A

    LMT Defense

    MSRP: $1,525.00
    $1,413.90
    The LMT Defense MWS .308 M-LOK Upper Receiver 15.3" (LM308BML4A) is LMT's extended large-caliber MRP-H monolithic upper receiver, offering an additional 3 inches of handguard length over the standard...
    MSRP: $1,525.00
    $1,413.90
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    MSRP: $1,525.00
    $1,413.90
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  • Out of stock
    Spuhr - 34mm Picatinny Mount 0 MOA - 1.5" Extended Housing - SP-4002C - 7340150701895 - Boss Firearms - BossFirearms.com Spuhr - 34mm Picatinny Mount 0 MOA - 1.5" Extended Housing - SP-4002C - 7340150701895 - Boss Firearms - BossFirearms.com

    Spuhr - 34mm Picatinny Mount 0 MOA - 1.5" Extended Housing - SP-4002C

    Spuhr

    $475.00
    SPUHR SP-4002   *Replacement model for the SP-4003B   Ring Size: 34mm
    $475.00
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    $475.00
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  • Out of stock
    Spuhr - 36mm Cantilever Quick Detach Mount 0MIL/0MOA 1.5" - QDP-6016 - 7340150705091 - Boss Firearms - BossFirearms.com

    Spuhr - 36mm Cantilever Quick Detach Mount 0MIL/0MOA 1.5" - QDP-6016

    Spuhr

    $495.00
    Spuhr 36mm Cantilever QD Ring Size:  36mm Tilt:  0 MIL / 0 MOA Height:  38mm(1.5in)
    $495.00
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    $495.00
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  • Out of stock
    Spuhr - Ballistic Adjustable Mount for Aimpoint M4 Sights 7.62 - SM-101QD-1 - Boss Firearms - BossFirearms.com Spuhr - Ballistic Adjustable Mount for Aimpoint M4 Sights 7.62 - SM-101QD-1 - Boss Firearms - BossFirearms.com

    Spuhr - Ballistic Adjustable Mount for Aimpoint M4 Sights 7.62 - SM-101QD-1

    Spuhr

    $715.00
    The BAM mount is intended to provide Aimpoint M4 sight’s with multiple distance settings.  7.62/308 Ballistics:  50/200 Meter Zero, TO 1000 Meters As the integral Aimpoint twist mount moves parallel...
    $715.00
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    $715.00
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  • Out of stock
    Spuhr - 34mm Picatinny Mount 3 MIL/10.3MOA 1.5" - SP-4302C - 7340150701970 - Boss Firearms - BossFirearms.com

    Spuhr - 34mm Picatinny Mount 3 MIL/10.3MOA 1.5" - SP-4302C

    Spuhr

    $410.00
    3 MIL/10.3 MOA Height: 38 mm/1.5” Length: 120 mm/4.72” (body) 130 mm/5.12” (OAL) Weight: 255 g/9.0 oz 10-degree w
    $410.00
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    $410.00
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  • Out of stock
    Spuhr - Picatinny Hunting Mount 34mm, H/1.18" - SCP-4001A - Boss Firearms - BossFirearms.com Spuhr - Picatinny Hunting Mount 34mm, H/1.18" - SCP-4001A - Boss Firearms - BossFirearms.com

    Spuhr - Picatinny Hunting Mount 34mm H/1.18" - SCP-4001A

    Spuhr

    $220.00
    Spuhr's new Hunting Series of mounts - offering a more attractive and lightweight alternative to the ISMS series of scope mounts. The SCP-4001 is designed for use on Picatinny rails and features two...
    $220.00
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    $220.00
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  • Out of stock
    Spuhr - Tikka T3 Scope Base 20 MOA Extended - R-7622 - 7340150706449 - Boss Firearms - BossFirearms.com

    Spuhr - Tikka T3 Scope Base 20 MOA Extended - R-7622

    Spuhr

    $93.00
    High Quality Dehorned Scope Mount Base   Based on a decade of experience designing and manufacturing the original Ideal Scope Mount System – i
    $93.00
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    $93.00
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  • Out of stock
    Spuhr - Picatinny Interface Rings 34mm H/1.18" - HP40-30D

    Spuhr - Picatinny Interface Rings 34mm H/1.18" - HP40-30D

    Spuhr

    $199.00
    Aesthetic hunting rings for 34 mm tube on Picatinny and Weaver bases/rails. Features two Spuhr Interface top covers for attaching accessories. Height: 30mm/1.18" Weight: 119 gram/4.2oz Rai
    $199.00
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    $199.00
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  • Out of stock
    Spuhr - Picatinny Aesthetic Rings 30mm H/1" - HP30-25A - 7340150706586 - Boss Firearms - BossFirearms.com

    Spuhr - Picatinny Aesthetic Rings 30mm H/1" - HP30-25A

    Spuhr

    $159.00
    Aesthetic hunting rings for 30mm tube on Picatinny and Weaver bases/rails. Features two classic top covers.  
    $159.00
    Qty in Cart: 0
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    $159.00
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  • Out of stock
    Spuhr - 30mm Cantilever Mount 0 MOA 1.5" Gen 3 - SP-3022C - 7340150701314 - Boss Firearms - BossFirearms.com

    Spuhr - 30mm Cantilever Mount 0 MOA 1.5" Gen 3 - SP-3022C

    Spuhr

    $410.00
    Extended cantilever. Allows the scope to be mounted 70 mm/2.76” further forward than with a non-cantilever mount.10-Degree wedge included 0 MIL/0 MOAHeight: 38 mm/1.5”Length: 140 mm/5.51”
    $410.00
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    $410.00
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